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Combined Wire and Wireless Telephone System.

Description: Patent for a combined wire and wireless telephone system that allows 2 people who are calling through two different central operating stations to talk to each other even though there is no wire directly between the 2 parties, through the use of a wireless system.
Date: June 27, 1911
Creator: Johnson, Maurice Bernays
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Block-Signaling Device.

Description: Patent for a block signaling device for railroads, which sends an audible signal as well as a telephone message to the incoming train.
Date: October 6, 1908
Creator: Fechner, William & Fechner, Albert Henry
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Automatic Telephone-Exchange System.

Description: Patent for "a simple system and arrangement which is especially adapted for a telephone exchange, which enables the instruments to be connected by a single wire, which dispenses with the use of an operator at the central station, which has automatic means for registering the messages sent by each subscriber, and which is provided with an automatic switching device by means of which one subscriber may connect with any other" (lines 10-19).
Date: December 5, 1893
Creator: Serdinko, John
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wireless-Telephone System.

Description: Patent for a wireless telephone system that does not require the user to flip a switch in between receiving and sending a message.
Date: June 27, 1911
Creator: Johnson, Maurice Bernays
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wireless Break-Key

Description: Patent for a wireless break key that allows a station to just have one aerial line and prevents burn out of the machinery and injury to operators while transmitting messages faster than other wireless devices.
Date: December 31, 1912
Creator: Mobley, Grier P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Magneto-Telephonic Apparatus

Description: Patent for an invention to improve transmitting vocals and other sounds. It is a magneto telephonic system based on an magnetic field of high intensity.
Date: May 4, 1886
Creator: Brown, Fred. H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Insulator.

Description: Patent for a simple, inexpensive, and durable insulator meant for protecting wires for telephones and telegraphs. The insulator has two sections with recesses and locking apertures.
Date: June 18, 1895
Creator: Patterson, James M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Insulator

Description: Patent for an insulator to be used to attach electric conductors and wires to walls or posts. Illustrations included.
Date: December 29, 1908
Creator: Marshall, George B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Telephone-Call Recorder

Description: Patent for a telephone call recorder that allows the number of who is calling to be recorded when the phone is not answered and tell a person already on the phone who is trying to call them.
Date: October 15, 1912
Creator: Warwick, Harold L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Telephone Attachment.

Description: Patent for a telephone attachment for multi-party lines, which allows the user to hold the line against eavesdropping by other users on the line and let multiple people use the line at the same time.
Date: November 23, 1909
Creator: Mitchell, Charles B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Telephone-Lighting System.

Description: Patent for an invention as specified relates to new and useful improvements in telephone lighting systems for the purpose of providing lamps on subscribers' telephones arranged.
Date: October 13, 1914
Creator: Boze, James A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Telephone Signal

Description: Patent for a telephone signal. This invention relates to electrically operated signals whereby a visual signal for indicating when a telephone rings. Illustration included.
Date: December 11, 1906
Creator: Jordan, Thomas P. & Carden, George A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Telephone System.

Description: Patent for "a novel arrangement of circuits in connection with a pair of telephone-receivers at each subscriber's station, whereby the subscriber can cut out the station, so that the conversation is being carried on between two subscribers cannot be heard by the other subscribers on the same line" (lines 9-17).
Date: July 4, 1899
Creator: Bennett, William W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Switch Cord Plug

Description: Patent for a switch cord plug that can be adapted to cords and used with telephone switchboards. Illustrations included.
Date: April 28, 1908
Creator: Smith, Eugene Lamar
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Spark-Gap Muffler.

Description: Patent for a spark gap muffler that muffles the sound of a spark jumping a gap between wires in wireless telephone and telegraph systems.
Date: June 27, 1911
Creator: Johnson, Maurice Bernays
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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