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Lock

Description: Patent for a lock. This lock is designed for a coin fed lock that releases the key for the customer. Illustration included.
Date: June 2, 1908
Creator: Johnson, Randall
Partner: UNT Libraries Government Documents Department

Pedal Attachment.

Description: Patent for an "improved attachment for pianos, organs, or other instruments provided with pedals" (lines 9-10) to protect the openings underneath the pedals from mice, dust, or other unwanted items entering the instrument through such openings.
Date: June 3, 1902
Creator: Gross, Rudolph
Partner: UNT Libraries Government Documents Department

Animal Trap.

Description: Patent for an improved and simplified trap where "a large number of rats can be caught in succession before the trap has to be emptied, as the trap door arrangement is automatic in regard to resetting" (lines 20-24).
Date: June 23, 1914
Creator: Willard, Thomas A.
Partner: UNT Libraries Government Documents Department
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