Title:
Plate spacer for vent pipe
Document Type and Number:
United States Patent 2751652
Inventors:
Saul, Epstein
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Publication Date:
06/26/1956
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Referenced by:
Export Citation:
Assignee:
Saul, Epstein
Primary Class:
Other Classes:
52/220.100, 248/314, 126/307R
International Classes:
E04F17/04; E04F17/00
US Patent References: