Title:
Method of constructing subaqueous concrete structures
United States Patent 1421857

Inventors:
Johan, Store
Publication Date:
07/04/1922
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Assignee:
Johan, Store
Primary Class:
405/222
Other Classes:
52/2.260, 264/32, 264/31, 405/107
International Classes:
E02D15/06; E02D15/00