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US Patent: 2,669,145
Releasing Device for Locking Pliers
Patentee:
Homer A. Mead (exact or similar names) - Turlock, Stanislaus County, CA

USPTO Classifications:
81/370

Tool Categories:
wrenches : pliers type wrenches : locking pliers

Assignees:
None

Manufacturer:
H. R. Basford Co. - San Francisco, CA

Witnesses:
none listed

Patent Dates:
Applied: Oct. 03, 1952
Granted: Feb. 16, 1954

Patent Pictures: [ 1 | 2 | 3 ]
Patent 2,669,145 -edited image
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Description:
The size adjustment means shown in the drawing was not used in GRIPSO locking plier wrenches -- a form of "trigger" lock release appears in late 1950s ads for the GRIPSO "TRIGGER-MATIC" and appears in a 1959 ad for the NASCO KYNE-SNAP (a "bull lead" with modified jaws on a GRIPSO locking plier frame).

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