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US Patent: 520,689
Wrench
Patentee:
Herrmann Krebs (exact or similar names) - San Pedro, CA

USPTO Classifications:
81/111, 81/92

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

Assignees:
Herrmann Krebs - San Pedro, CA
Nicholas Bose - San Pedro, CA

Manufacturer:
Not known to have been produced

Witnesses:
E. M. McKay
C. Sedgwick
Louis Entner
Charles Matson
Patent Dates:
Applied: Mar. 08, 1894
Granted: May 29, 1894

Patent Pictures:
Herrmann Krebs patent May 29, 1894
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Stan Schulz
Description:
Screw-adjust alligator wrench. The frame includes a hammer poll.

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