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US Patent: 512,938
Sucker Rod Elevator and Wrench
Patentee:
David W. Black (exact or similar names) - Butler, PA

USPTO Classifications:
294/91, 81/119

Tool Categories:
wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
H. M. Corwin
W. W. Swartz
W. B. Corwin
Patent Dates:
Applied: Jul. 12, 1893
Granted: Jan. 16, 1894

Patent Pictures:
David W. Black patent January 16, 1894
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Description:
The distinctive feature of this sucker rod elevator and wrench is the curved hook area.

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