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US Patent: 1,370,820
Adjustable socket-wrench
Patentee:
James Oscoe Johnson (exact or similar names) - Kokomo, IN

USPTO Classifications:
81/113

Tool Categories:
wrenches : socket wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. R. Tomlin
Oscar Lewellyn
William White

Patent Dates:
Applied: Jun. 21, 1920
Granted: Mar. 08, 1921

Patent Pictures: [ 1 | 2 ]
Patent 1,370,820 - edited drawing
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Description:
Jaw size is adjustable; wrench is turned by sliding "T" handle in the shank portion, and the length of the shank is adjustable.

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