United States Patent 2733713
Publication Date:
02/07/1956
Export Citation:
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Primary Class:
604/151
Other Classes:
601/162, 604/245, 604/250
International Classes:
A61C17/024; A61H13/00; A61C17/00; A61H13/00
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US Patent References:
2634885Lubricating apparatus
2295982Pump unit and stand
2197995Valve
1792245Remote-control switch for pumping systems