Brushing – scrubbing – and general cleaning – Machines – Brushing
Patent
1977-02-22
1978-07-11
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Machines
Brushing
A47L 1133
Patent
active
040992845
ABSTRACT:
Driving wheels for auxiliary rotary wheels are provided at the forward corners of a sweeper in a spaced relationship from driving wheels for a main rotary brush to provide a long wheel base.
REFERENCES:
patent: 485348 (1892-11-01), Leigh
patent: 801882 (1905-10-01), Knell
patent: 865084 (1907-09-01), Deitch et al.
Mikami Yasao
Nagasawa Kazuo
Shinozaki Mamoru
Takahama Yuichi
Tubaki Hachiro
Roberts Edward L.
Tanita Corporation
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