Power excavating device
United States Patent 3065557
US Patent References:
/1041569.html
- - 1041569

Electric hammer attachment
- - 2191608

Excavating bucket
- - 2228445

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- - 2408484

Pavement breaking drill
- - 2905168


Inventors:
Pewthers, Charles W.
Publication Date:
11/27/1962
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Assignee:
ALBRITTON ENGINEERING CORP
Primary Class:
299/67
Other Classes:
37/902, 173/52, 37/447, 173/46, 405/174, 299/108, 172/40, 414/724, 37/904, 299/69, 172/62, 173/206
International Classes:
E02F3/40
Foreign References:
FR894880A
DE922519C