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US Patent: 424,583
Nut Wrench
Patentee:
David Steiner (exact or similar names) - Adamsburg, PA

USPTO Classifications:
81/56

Tool Categories:
wrenches : socket wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. H. Raeder
Van Buren Hillyard
D. C. Morris
Andrew Strittmatter
Patent Dates:
Applied: Jul. 11, 1889
Granted: Apr. 01, 1890

Patent Pictures:
David Steiner patent April 1, 1890
USPTO (New site tip)
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Description:
A gear-powered socket wrench for construction work on bridges, railroads, etc. An adjustable frame and clamping mechanism position the socket.

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