Manual window washer device

Details Manual window washer device Manual window washer device

1985-01-17

1988-03-29

Kemper, Catherine E.

Washing, cleaning, or drying machine

Laundering, cleaning, or drying tools or implements

Scraper, duster, mop, or sponge

D 9338

Patent

active

D02949890

REFERENCES:
patent: D235411 (1975-06-01), Savage
patent: D236072 (1975-07-01), Tsang
patent: D247543 (1978-03-01), Savage
patent: 2147769 (1939-02-01), Epstein
patent: 2583432 (1952-01-01), Leverock
patent: 2859463 (1958-11-01), Hirsch
patent: 2886839 (1959-05-01), Leopoldi
patent: 3603692 (1971-09-01), Ball et al.
patent: 3837747 (1974-09-01), Seymore
patent: 4013369 (1977-03-01), Turek

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