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in subjects: "locks"  
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Automatic Railway Switch Lock

Description: Patent for an automatic railway switch lock. Illustration included.
Date: May 17, 1904
Creator: Sulfer, Charles
Partner: UNT Libraries Government Documents Department

Line-Lock Attachment for Type-Writing Machines.

Description: Patent for improvements in line-lock attachments for type-writing machines in which “it prevent the printing of one letter over another by effecting a locking of the key-levers when the carriage of the machine reaches the end of the line.” (Lines 26-29) Illustration is included.
Date: July 5, 1904
Creator: Parker, William A.
Partner: UNT Libraries Government Documents Department

Nut Lock

Description: Patent for a nut lock. Illustration included.
Date: August 9, 1904
Creator: Payne, Newton & Guynes, Allen Perry
Partner: UNT Libraries Government Documents Department

Sash Lock

Description: Patent for a sash lock. This invention pertains to railway cars. Illustration included.
Date: November 8, 1904
Creator: Hughes, Henry B.
Partner: UNT Libraries Government Documents Department

Seat Lock For Wagons

Description: Patent for a seat lock for wagons. Illustration included.
Date: August 16, 1904
Creator: Moore, Leon P.
Partner: UNT Libraries Government Documents Department
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