Washing – cleaning – or drying machine – Washing – cleaning – or drying machine – Surface treatment – e.g. – floor – street – etc.
Patent
1985-07-09
1988-09-20
Burke, Wallace R.
Washing, cleaning, or drying machine
Washing, cleaning, or drying machine
Surface treatment, e.g., floor, street, etc.
Patent
active
D02977796
REFERENCES:
patent: 1393640 (1921-10-01), Pontaleone et al.
patent: 2145738 (1939-01-01), Sandberg
patent: 3493987 (1970-02-01), Longnecker
patent: 3746099 (1973-07-01), Black
patent: 4001908 (1977-01-01), Franklin
Burke Wallace R.
EC Maskin AB
Takemoto Ruth
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