Trenching machine
United States Patent 2828557
US Patent References:
/0099016.html
- - 0099016

Mining apparatus
- - 1635623

Convertible vehicle
- - 2341883

Drive mechanism for trench digging machines
- - 2519075

Trench digging machine
- - 2519077


Inventors:
Delbert, Brown William
Publication Date:
04/01/1958
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Assignee:
Delbert, Brown William
Primary Class:
37/363
Other Classes:
37/361
International Classes:
E02F5/06
US Patent References:
2584287Digging adjustment for endless type trench excavators
2598768Drive transmission for garden type tractors
2714262
2751698Adjustment mechanism for tractor mounted endless ditch digger