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Title:
BACKHOE AND AUXILIARY BLADE THEREFOR
United States Patent 3469330
US Patent References:
Back filling attachment for power shovels
- - 2644251
Back-filling blade for a power shovel
- - 3043032
Inventors:
Hood, John W.
Johnson, Arne W.
Publication Date:
09/30/1969
View Patent Images:
Download PDF 3469330
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Assignee:
Hood, John W.
Arne, Johnson W.
Primary Class:
37/404
Other Classes:
414/724
International Classes:
E02F3/96
;
E02F3/04
; E02F3/00; E02F3/76
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