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US Patent: 1,855,461
Valve Spring Compressor
Patentees:
Christian Tennyson (exact or similar names) - Milwaukee, WI
Arthur H. Yordi (exact or similar names) - Milwaukee, WI

USPTO Classifications:
29/220

Tool Categories:
specialty tools : valve spring tools

Assignees:
Snap-On Tools, Inc. - Kenosha, WI

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: May 13, 1929
Granted: Apr. 26, 1932

Patent Pictures:
Christian Tennyson & Arthur H. Yordi patent April 26, 1932
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Snap-On Tools Company History
Description:
Valve spring compressor for "valve in head" aviation engines. It uses the pivot pin of the valve tappet lever as an anchor to the engine block.

Louis O. French - patent attorney

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