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US Patent: 95,102
Loosening & Tightening Screw Caps of Fruit Jars
Patentee:
Alonzo French (exact or similar names) - Philadelphia, PA

USPTO Classifications:
81/3.44, 81/426.5

Tool Categories:
wrenches : jar wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John White
Louis Boswell
Wm. A. Steel
Jno. B. Harding

Patent Dates:
Granted: Sep. 21, 1869

Patent Pictures:
Alonzo French patent Sept. 21, 1869
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Description:
Two lever handles hinged together; the inner surfaces of the curved areas shaped to correspond to the threads of screw on jar lids.

Oldest "jar wrench" patent in the CCL 81/3.44.

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