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US Patent: 1,544,520
Push-Rod Adjusting Tool
Patentee:
Earl P. Putrow - Milwaukee, WI

USPTO Classifications:
7/100, 7/138, 81/484, 81/55

Tool Categories:
wrenches : automotive specialty wrenches

Assignees:
ValTul Corporation - Milwaukee, WI

Manufacturer:
Snap-On - Milwaukee, WI

Witnesses:
none listed

Patent Dates:
Applied: Jan. 07, 1924
Granted: Jun. 30, 1925

Patent Pictures: [ 1 | 2 ]
Earl P. Putrow Pat. June 30, 1925
USPTO pdf tiff
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Snap-On Valve Adjusters
Description:
The tool combines a screwdriver and socket wrench, designed to adjust push-rods in overhead valve engines.

The patent number appears on Snap-On valve adjusting tools. Some tool sets based on this patent included three sizes of sockets. Other specialized versions were made to correspond to specific engine applications.

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