Title:
Back-filling blade for a power shovel
United States Patent 3043032
US Patent References:
/0947964.html
- - 0947964

/1023849.html
- - 1023849

Bucket or grapple
- - 1762946

Back-filling attachment for excavators
- - 1765892

Bulldozer
- - 1923412


Inventors:
Nelson, Discenza
Publication Date:
07/10/1962
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Assignee:
Nelson, Discenza
Primary Class:
37/404
Other Classes:
37/142.500, 414/724
International Classes:
E02F3/96; E02F3/04
US Patent References:
2488695Attachment for tractors
2555752Shovel
2644251Back filling attachment for power shovels
2652640Detachable trench hoe spade
2783558Trenching attachment for excavating buckets
Foreign References:
IT552003B