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in subjects: "Business, Economics and Finance"  
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Hydraulic Pressure and Time Indicator

Description: Patent for hydraulic pressure and time indicator for "recording the times when hydraulic cylinders are in operation and to indicate when the cylinders commence work or reach the required pressure" (lines 10 - 14).
Date: December 24, 1918
Creator: Helm, Clyde D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Protector for Type-Writer Frames.

Description: Patent for typewriter frame protector. The protector attaches to the part of the typewriter frame which is subjected to frequent contact by the user. The protector prevents the frame from wear which can lead to rust.
Date: March 12, 1918
Creator: Glasscock, Gerald A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Building Tile.

Description: Patent for "hollow blocks" or "tile and hollow corner blocks" that "prevent moisture from passing through walls" (lines 10-14).
Date: December 31, 1918
Creator: Bennett, Walter R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Book with Removable Cover

Description: Patent for a removable cover for a pass book (a book where a customer's bank deposit account is kept). When a customer's pass book is filled the cover can be removed and refilled with a new pass book.
Date: September 10, 1918
Creator: Malsch, Herman C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Brush.

Description: Patent for a brush that provides adjustable handle for variety of uses and great saving of time and labor. The brush is durable and not excessively heavy.
Date: June 4, 1918
Creator: Lay, William C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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