US Patent: 1,371,350


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Wrench

Patentee:

Solomon A. Campbell (exact or similar names) - Newton, Middlesex County, MA

USPTO Classifications:

81/177.4, 81/63.2

Tool Categories:

wrenches : socket wrenches

Assignees:

Sarah W. Campbell - Newton, Middlesex County, MA

Manufacturer:

Allen Manufacturing Co. - Hartford, CT

Witnesses:

none listed

Patent Dates:
Applied:	Oct. 09, 1920
Granted:	Mar. 15, 1921

Patent Pictures:

Solomon A. Campbell patent March 15, 1921

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Description:

The patent claims the structure of the head with passage for sliding handle, and the ratchet structure. Other features shown in the drawings and described in the specifications are not noted in the claims.

The ratchet and rod handle appear as components of a "Bay State" ratchet and socket set advertised by the Allen Mfg. Co. of Hartford, Conn. in 1922.