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US Patent: 198,685
Improvement in wrenches
Patentee:
Sylvanus Edward Robinson - Newark, NJ

USPTO Classifications:
81/73

Tool Categories:
wrenches : brace wrenches

Assignees:
None

Manufacturer:
Sylvanus Robinson - Newark, NJ
P. Lowentraut Manufacturing Co. - Newark, NJ

Witnesses:
W. H. Abraham
I. W. Consegia
Robert Everett
George E. Upham

Patent Dates:
Applied: Nov. 10, 1877
Granted: Dec. 25, 1877

Patent Pictures: [ 1 | 2 ]
Sylvanus Edw. Robinson Pat. Dec. 25, 1877
USPTO pdf tiff
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Description:
One known example marked "Robinsons Crank Wrench & Bit Brace Newark N.J. Pat. Jan. 26, 1875, Dec. 25, 1877"

Improves Robison's patent no. 159,119.

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