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DE Patent: DE-5,229
Neuerungen an franzosischen Schraubenschlüsseln
Patentee:
Gustav Althaus (exact or similar names) - Remscheid, Germany

USPTO Classifications:

Tool Categories:
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Granted: Jul. 03, 1879
Antedated: Sep. 18, 1878

Patent Pictures:
German patent 5229 - composite edited image
Espacenet patent
Report data errors or omissions to steward Stan Schulz
Description:
"French style" adjustable wrenches have a central threaded shaft, with the movable jaw kept in alignment by secondary shafts parallel to the central shaft.

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