HYDRAULICALLY CONTROLLED VIBROHAMMER
United States Patent 3529681
US Patent References:
/0904528.html
- - 0904528
Pile-driver with a hydraulically operated pile rammer
- - 3009522
/0904528.html
- - 0904528
Pile-driver with a hydraulically operated pile rammer
- - 3009522
Inventors:
Berrie, Emile Georges
Publication Date:
09/22/1970
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Assignee:
Emile, Georges Berrie
Primary Class:
Other Classes:
60/537, 173/125, 92/117R
International Classes:
B25D9/12; E02D7/10; E02D7/18; E02D7/26; B25D9/00; E02D7/00; E21B1/02; E02D7/02