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United States Patent 2482637
US Patent References:
/1142996.html
- - 1142996

/1161098.html
- - 1161098

/1274824.html
- - 1274824

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Inventors:
Papa, William J.
Parry, Podvinecz Dorothy
Publication Date:
09/20/1949
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Assignee:
Papa, William J.
Parry, Podvinecz Dorothy
Primary Class:
472/116
International Classes:
A63G21/00