Extensible mast structures for hydraulic towers
United States Patent 2826280
US Patent References:
/0423135.html
- - 0423135

/0934748.html
- - 0934748


Inventors:
Troche, Herman J.
Howard, Holan James
Publication Date:
03/11/1958
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Assignee:
J H HOLAN CORP
Primary Class:
52/115
Other Classes:
52/111, 92/53, 91/405, 182/148
International Classes:
A62B5/00