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US Patent: D156,709
Cap Gripper
Patentee:
John Drazick (exact or similar names) - Detroit, MI

USPTO Classifications:
81/3.42, D8/40

Tool Categories:
wrenches : jar wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed
Patent Dates:
Applied: Dec. 06, 1947
Granted: Jan. 03, 1950

Patent Pictures:
John Drazick design patent January 3, 1950
USPTO (New site tip)
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Description:
It appears the design represents a jar cap wrench with three cam activated grips.

The specifications cite patent nos. 1,471,353 and 1,506,640 as references.

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