Title:
Apparatus for compacting materials by vibration
Document Type and Number:
United States Patent 2276613

Inventors:
Gordon, Graham M.
Publication Date:
03/17/1942
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Assignee:
VIBER COMPANY
Primary Class:
366/122
Other Classes:
366/123, 366/128
International Classes:
E04G21/08; E04G21/06




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