Toilet tank chemical dispenser

Details Toilet tank chemical dispenser Toilet tank chemical dispenser

1992-09-01

1994-03-15

Burke, Wallace R.

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Treatment

D23366

Patent

active

D03451968

REFERENCES:
patent: D276646 (1984-12-01), Ronayne
patent: D284506 (1986-07-01), Gutknecht
patent: D284693 (1986-07-01), Royayne
patent: D307625 (1990-05-01), King et al.
patent: D321320 (1991-11-01), Halm
patent: 4451941 (1984-06-01), Gray
patent: 4707866 (1987-11-01), von Philipp et al.
patent: 4813084 (1989-03-01), Buecheler et al.
Photographs (Series A-D) illustrating the Null-Null W. C. Wasserkasten Automat. (1990).
Photographs (Series A-C) illustrating the "Biofresh" from Hungary. (date unknown).
Label for "Blue Flush" from Racasan Limited, Manchester, England. (1986).
Label for "WC Frisch" from Wasserkasten-Automat, Thompson-Siegel GmbH, Dusseldorf, Germany. (date unknown).
Label for "Trident" Starter Set Automatic Toilet Bowl Cleaner, Trident Products Inc., So. San Francisco, Calif. 94080. (date unknown).

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