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US Patent: 466,232
Flange Wrench
Patentees:
Edward Harper - Leadville, CO
Paul G. Metzler - Leadville, CO

USPTO Classifications:
74/146, 81/176.2, 81/58.4

Tool Categories:
wrenches : flange wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Geo. E. Cruse
B. C. Briggs
L. C. White
Harry S. Rolsver

Patent Dates:
Applied: Oct. 08, 1891
Granted: Dec. 29, 1891

Patent Pictures:
Edward Harper and Paul G. Metzler patent December 29, 1891
USPTO pdf tiff
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Description:
Studs in the central disk fit bolt holes in the flange to be screwed. The lever handle with its lug slides on the central pivot, and the lug engages one of the peripheral notches on the central disk.

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