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Improvements in Sash-Lock

Patent for an improvement on sash locks or fasteners for a window frame to allow two sashes to be controlled by one sash.

Date: June 16, 1903

Creator: Miller, John D.

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Permutation-Lock.

Patent for improvements and simplification of the permutation lock including a latch-bolt slidable case and a tumbler-shaft journaled in a side wall of the case.

Date: July 10, 1906

Creator: Katzenberger, Oscar.