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US Patent: 410,985
Nut Wrench
John B. Meier - Port Huron, MI

USPTO Classifications:

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches

John B. Meier - Port Huron, MI
Benj. J. Karrer - Port Huron, MI


Van Buren Hillyard
C. H. Raeder
Lewis Atkins
Benj. J. Karrer

Patent Dates:
Applied: Mar. 21, 1889
Granted: Sep. 10, 1889

Patent Pictures:
John B. Meier patent September 10, 1889, with 8 inch example from Dennis Piper collection
USPTO pdf tiff
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The adjustment is held by rack teeth in the lever handle engaging rack teeth on the shank of the movable jaw. A spring catch in the end of the handle holds the lever handle in the "closed" position.

Known example marked MEIER WRENCH PAT SEPT. 10 89. Corresponding Canadian patent CA-34,550 granted June 19, 1890.

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