Closet flange

Details Closet flange Closet flange

1990-12-19

1993-03-16

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Fitting

Patent

active

D03340511

REFERENCES:
patent: D29291 (1898-08-01), Rice
patent: D314422 (1991-02-01), Adorjan
patent: 1648665 (1927-11-01), Swanson et al.
patent: 3319268 (1967-05-01), Blumenkranz
patent: 3501172 (1970-03-01), Pickard
patent: 3905052 (1975-09-01), DeAngelis
patent: 4406480 (1983-09-01), Izzi
patent: 4470162 (1984-09-01), Marshall
patent: 4502166 (1985-03-01), Brown, Sr.
patent: 4827539 (1989-05-01), Kiziah
patent: 4850063 (1989-07-01), Abbate

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