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US Patent: 1,392,373
Valve Lifting Device
Patentee:
Joseph E. Wainwright (exact or similar names) - Brooklyn, NY

USPTO Classifications:
29/217

Tool Categories:
specialty tools : valve spring tools

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. S. McCathran
Patent Dates:
Applied: Nov. 15, 1920
Granted: Oct. 04, 1921

Patent Pictures:
Joseph E. Wainwright patent Oct. 4, 1921
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Description:
The first of two patents referenced by dates on the W-W Co. "accordion" / "lazy tongs" valve spring compressor. The second is 1,447,447.

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