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United States Patent 3422720
US Patent References:
/0477830.html
- - 0477830

/1667089.html
- - 1667089

Pivot bearing, particularly for windshield wipers
- - 3016766

Cleaning mops and applicators
- - 3147502


Inventors:
Johnson, Melvin E.
Publication Date:
01/21/1969
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Assignee:
Melvin, Johnson E.
STARCK PIANO CO
Primary Class:
84/435
Other Classes:
384/428, 84/452P, 84/251, 403/119
International Classes:
G10C3/12; G10C3/12




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