DE Patent: 138,929


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DE Patent: DE-138,929

Rohrzange

Patentee:

Ambrose Francis Jackson (exact or similar names) - Rock Island, IL U.S.A.

USPTO Classifications:

Tool Categories:

wrenches : pipe wrenches

wrenches : wrench adjustment types : self-adjust wrenches

Assignees:

None

Manufacturer:

W.W. Whitehead Co. - Davenport, IA

Witnesses:

none listed

Patent Dates:
Granted:	Mar. 02, 1903
Antedated:	Feb. 27, 1901

Patent Pictures:

Ambrose F. Jackson patent DE-138929 (edited)

Espacenet patent
Report data errors or omissions to steward Stan Schulz
DE-138929 in ESPACENET

Description:

Self-adjusting hook jaw pipe wrench corresponding to U.S. patent 668,645. As noted in the entry for that patent, the design was produced in the U.S. in the larger sizes of the JACKSON Pipe Wrench.