Sump pump

Details Sump pump Sump pump

1993-02-05

1994-10-18

Seifert, Ralf T.

Machines not elsewhere specified

Pump or compressor

Patent

active

D03516024

REFERENCES:
patent: D198608 (1964-07-01), Rhodes
patent: D227168 (1973-06-01), Chase
patent: D236756 (1975-09-01), Franzen
patent: D237011 (1975-09-01), Stroberg
patent: D242651 (1976-12-01), Arakawa
patent: D258210 (1981-02-01), Shure
patent: D316099 (1991-04-01), Hartz
patent: 4218195 (1989-08-01), Shure
patent: 4856971 (1989-08-01), Koble, Jr.
patent: 5094591 (1992-03-01), Whitley, II et al.

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