Brushing – scrubbing – and general cleaning – Implements – Combined
Patent
1986-06-02
1987-10-13
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Implements
Combined
152353, 425458, E04G 2120
Patent
active
046988700
ABSTRACT:
A plurality of circular grout striking projections each having a radius different than the rest are arranged about the periphery of a central circular disc such that no projection interferes with the use of any adjacent projection in striking grout between pieces of tile.
REFERENCES:
patent: 1509457 (1924-09-01), Wickham
patent: 2380855 (1945-07-01), Lower
patent: 3256548 (1966-06-01), Peterson
patent: 3351969 (1967-11-01), Cline
Roberts Edward L.
Van Epps Robert F.
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