Title:
System of draining
United States Patent 1734777
Inventors:
Pike, Frank A.
Publication Date:
11/05/1929
Export Citation:
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Assignee:
Pike, Frank A.
Primary Class:
52/169.5
Other Classes:
52/169.14, 52/198, 52/302.3, 210/532.1
International Classes:
E02D31/02; E02D31/00
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