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in subjects: "locks"  
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Sash-Holder

Description: Patent for an improved window-sash lock.
Date: August 1, 1882
Creator: Carson, William C.
Partner: UNT Libraries Government Documents Department

Permutation Lock.

Description: Patent for a new and improved combination lock. This design "consists in the construction and novel arrangement of the slotted bolt, follower, and follower-shaft, the elongated bolt-stop pivoted in the slot of the bolt, the radially-slotted disks having concentric stems on the follower-shaft, and the lettered or figured and graduated stem-caps engaging the respective stems by means of circular series of teeth" (lines 20-27).
Date: December 12, 1882
Creator: Saxon, James W.
Partner: UNT Libraries Government Documents Department
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