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DE Patent: DE-138,692
Rohrzange mit vom Stiel aus zu Offnender sich unter Federdruck selbsttthatig schliefsender beweglicher Backe
Patentee:

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: May 25, 1901

Patent Pictures:
W. W. Whitehead Co. patent granted effective May 25, 1901 -- edited image
Espacenet patent
Report data errors or omissions to steward Stan Schulz
Description:
German patent granted to the W.W. Whitehead Co., Davenport, IA, corresponding to Ambrose F. Jackson patent 676,318 which was produced as the small size of the JACKSON PIPE WRENCH.

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