Two-sided sponge

Washing – cleaning – or drying machine – Laundering – cleaning – or drying tools or implements – Scraper – duster – mop – or sponge

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0805

Patent

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D03796973

REFERENCES:
patent: D229160 (1973-11-01), Meyer
patent: 1511969 (1924-10-01), Hoy
patent: 1660729 (1928-02-01), Strock
patent: 1822725 (1931-09-01), Cooper et al.
patent: 2121384 (1938-06-01), Gray
patent: 2269871 (1942-01-01), Betelko
patent: 2841811 (1958-07-01), Carroll
patent: 3005219 (1961-10-01), Miller
patent: 4510641 (1985-04-01), Morris
Hong Kong Enterprise, Feb. 1993 p. 427 item #CS-1d, C5D, CS11D, CS10D.

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