Title:
Coupling for pile sections
Document Type and Number:
United States Patent 2708828
Inventors:
Pruyn, Francis L.
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Publication Date:
05/24/1955
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Referenced by:
Export Citation:
Assignee:
Pruyn, Francis L.
Primary Class:
Other Classes:
403/271, 403/298, 403/364
International Classes:
E02D5/52; E02D5/22
US Patent References: