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US Patent: 406,666
Combination Wrench
Patentees:
Fred J. Pratt - Jackson, MI
John H. Lane - Jackson, MI

USPTO Classifications:
81/112, 81/144, 81/177.2, 81/177.4, 81/437, 81/DIG.7

Tool Categories:
wrenches : wrench combination tools
wrenches : bicycle or pocket wrenches
wrenches : spoke nipple wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. Sedgwick
Phil. C. Dieterich
F. L. Irwin
Geo. S. Bennett

Patent Dates:
Applied: Jun. 19, 1888
Granted: Jul. 09, 1889

Patent Pictures:
Fred J. Pratt and John H. Lane patent July 9, 1889
USPTO pdf tiff
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Description:
Quick-adjust bicycle wrench with spoke wrench and screwdriver. The wrench and screwdriver adjustment is held by a toothed pressure plate adjusted by nut.

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