Toilet ventilation insert

Details Toilet ventilation insert Toilet ventilation insert

1998-03-12

1999-04-27

Zarfas, Louis S.

Environmental heating and cooling; fluid handling and sanitary e

Sanitary fixture or housing therefor

Element or attachment

2302

Patent

active

D04089022

REFERENCES:
patent: D290037 (1987-05-01), Todd, Jr.
patent: 5522093 (1996-06-01), Schaffer
patent: 5575019 (1996-11-01), Kijewski
patent: 5638553 (1997-06-01), Loewen et al.
patent: 5727263 (1998-03-01), Hugo Ceja Estrada

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