Caisson-dredge
United States Patent 1380203

Inventors:
Glick, Harvey C.
Publication Date:
05/31/1921
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Assignee:
Glick, Harvey C.
Primary Class:
175/97
Other Classes:
175/106, 37/337, 175/327, 175/102, 405/11
International Classes:
E21D1/06; E21D1/00