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in subjects: "Wrench"  
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Wrench.

Description: Patent for new and useful improvements in wrenches, including instructions and illustrations.
Date: December 5, 1899
Creator: Rollins, Edgar C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wrench.

Description: Patent for an improved wrench which utilizes two circular heads, individually situated at the ends of a single handle.
Date: January 13, 1914
Creator: Johnson, Alva Putman
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wrench.

Description: Patent for new design for a wrench that is a "simple, efficient, and inexpensive one adapted for operating on nuts, pipes, rods and other objects." (Lines 11-13) Illustration included.
Date: May 8, 1900
Creator: Willmann, Joseph
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pipe-Wrench.

Description: Patent for a new invention of pipe-wrench, how it is made and how it is used.
Date: May 23, 1916
Creator: Adams, Benjamin F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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