Combined blower and vacuum

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

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D03446158

REFERENCES:
patent: D307655 (1990-05-01), Hinklin et al.
patent: D310437 (1990-09-01), Gierke et al.
patent: 4644606 (1987-02-01), Luerken et al.
patent: 4694528 (1987-09-01), Comer et al.
patent: 4713858 (1987-12-01), Kelber
patent: 4870714 (1989-10-01), Miner

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