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United States Patent 2568654
US Patent References:
/0596203.html
- - 0596203

/1077216.html
- - 1077216

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- - 1331109

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- - 1652110

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- - 2388778


Inventors:
Neptune, Charles B.
Publication Date:
09/18/1951
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Assignee:
Neptune, Charles B.
Primary Class:
135/69
Other Classes:
135/68, 135/72, 403/369
International Classes:
A61H3/02; A61H3/00
Foreign References:
NO62881A