Electric vacuum cleaner

Washing – cleaning – or drying machine – Washing – cleaning – or drying machine – Surface treatment – e.g. – floor – street – etc.

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D03140725

REFERENCES:
patent: D263235 (1982-03-01), Akita
patent: D301784 (1989-06-01), Petralia et al.
patent: D305168 (1989-12-01), Kroll
patent: D307658 (1990-05-01), Ikeda et al.
Catalog, Hoover, "Turbomaster Cleaners", published in 1989.
Catalog, Sharp Electronics Corporation, "Vacuum Cleaners", published in 1989.

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