Well point and process of making the same
United States Patent 2046456
Inventors:
Johnson, Edward E.
Publication Date:
07/07/1936
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Export Citation:
Assignee:
EDWARD E JOHNSON INC
Primary Class:
Other Classes:
219/56, 175/314, 29/896.610, 166/231
International Classes:
E03B3/12; E03B3/00