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US Patent: 2,810,311
Threaded-Closure-Turning Tool
Patentee:
Webster Deroyce Smith (exact or similar names) - Palos Verdes Estates, CA

USPTO Classifications:
81/120, 81/3.4, D8/37

Tool Categories:
wrenches : jar wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Jan. 06, 1955
Granted: Oct. 22, 1957

Patent Pictures:
W. D. Smith patent Oct. 22, 1957
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Description:
Opposite facing "alligator" type grippers with holes for mounting to a surface. This would function as a "wrench" for screw cap containers.

U.S. patent numbers 802,018, 1,707,804, 2,053,246 and British patent number GB-614,982 are cited as references.

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