Transparent sump pump check valve

Details Transparent sump pump check valve Transparent sump pump check valve

1994-07-19

1995-11-14

Reid, Stella

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Valve or body therefor

Patent

active

D03642100

REFERENCES:
patent: D253721 (1979-12-01), Gibeck
patent: D269633 (1983-07-01), Willinger et al.
patent: D354335 (1995-01-01), Siposs
patent: 2867213 (1959-01-01), Thomas, Jr.
patent: 3460168 (1969-08-01), DeBruyne
patent: 4111228 (1978-09-01), Simionescu
patent: 4160383 (1979-07-01), Rauschenberger
patent: 4222407 (1980-09-01), Ruschke et al.
patent: 4411603 (1983-10-01), Kell
patent: 4471812 (1984-09-01), Bertsch
patent: 4946451 (1990-08-01), Cianci
patent: 5090447 (1992-02-01), Lewis et al.
patent: 5131432 (1992-07-01), Santarosa et al.
patent: 5295478 (1994-03-01), Baldwin

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