Electric vacuum cleaner

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

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D02889722

REFERENCES:
patent: D175345 (1955-08-01), Guild et al.
patent: D201668 (1965-07-01), Hubertus
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Merchandising, vol. 6, Nov. 1981, p. 93, Hoover Portapower.
Washington Post, Woodward and Lothrop Ad, 2-3-83, Eureka Mighty Mite Vacuum Cleaner.
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Japanese Official Gazette issued 5/29/79, Reg. No. 502,986, on 2/27/79, "Electric Vacuum Cleaner".
Japanese Official Gazette issued 10/26/79, Reg. No. 514,928, on 7/26/79, "Electric Vacuum Cleaner".
Japanese Official Gazette issued 10/30/82, Reg. No. 586,674, on 7/30/82, "Electric Vacuum Cleaner".
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