Air removing apparatus

Details Air removing apparatus Air removing apparatus

1984-10-03

1986-12-09

Freeh, William L.

Pumps

Combined

417550, 5451, A47C 3100, F04B 3912, F04B 2104

Patent

active

046277960

ABSTRACT:
Apparatus suitable for employment in the burping of a water bed comprises

REFERENCES:
patent: 2573375 (1951-10-01), Cuinstead
patent: 3797538 (1974-03-01), Mollura
patent: 3952348 (1976-04-01), Benjamin
patent: 4073019 (1978-02-01), Fraser
Waterworth Publication entitled Simple Escape, May 7, 1984.

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