Toilet bowl air freshener

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment

Patent

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D23208

Patent

active

D03642224

REFERENCES:
patent: D179972 (1957-04-01), Herriott
patent: D237497 (1975-11-01), Andreopoulos et al.
patent: D346857 (1994-05-01), Pan
patent: 2001593 (1935-05-01), Teetor
patent: 4251888 (1981-02-01), Turner
patent: 4556999 (1985-12-01), Lindley
patent: 4586201 (1986-05-01), Todd, Jr.
patent: 4617687 (1986-10-01), Wadsworth
patent: 4924532 (1990-05-01), Pennestri
patent: 5079783 (1992-01-01), Haletsky et al.

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