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US Patent: 2,666,350
Screw-adjusting tool
Patentee:
Walter W. Hackett (exact or similar names) - Oakland, CA

USPTO Classifications:
81/3

Tool Categories:

Assignees:
None

Manufacturer:
Hackett Tools - Oakland, CA

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 08, 1949
Granted: Jan. 19, 1954

Patent Pictures: [ 1 | 2 ]
Patent 2,666,350 -- edited drawing
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Description:
Valve tappet adjusting tool; it includes a scale for tracking the degree of rotational adjustment. [Compare the ValTul / Snap-On tappet adjuster based on patent no. 1,544,520.]

Produced as the "FEELZIT" valve adjusting tool.

Prior patents 1,575,560, 1,681,881 and 2,194,069 cited as references.

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