Brushing – scrubbing – and general cleaning – Implements – Fabric
Patent
1979-05-11
1980-06-17
McCarthy, Edward J.
Brushing, scrubbing, and general cleaning
Implements
Fabric
15210R, B43L 2100
Patent
active
042076463
ABSTRACT:
A chalkboard eraser including an elongated rigid tubular core member and a resilient body member fixed to the core member and disposed about the core member and generally coextensive therewith, the body member having alternate lands and grooves extending lengthwise and disposed about its periphery.
REFERENCES:
patent: 754900 (1904-03-01), Seith
patent: 1487052 (1924-03-01), Enomoto
patent: 3317944 (1967-05-01), Napier
patent: 3986224 (1976-10-01), Yang
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