Title:
Concrete mix transfer apparatus
United States Patent 3171534
Inventors:
Foster, Oury Robert
Publication Date:
03/02/1965
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Assignee:
OURY ENGINEERING COMPANY
Primary Class:
Other Classes:
198/525, 198/537, 198/538, 198/569
International Classes:
E04G21/04
Foreign References:
| FR1009995A |