Title:
VENTED ROOF SYSTEMS EMPLOYING MICROPOROUS MEMBRANES
United States Patent 3756895


Inventors:
BELLAMY R
Application Number:
US3756895DA
Publication Date:
09/04/1973
Filing Date:
07/23/1970
Assignee:
SELBY BATTERSBY & CO,US
Primary Class:
Other Classes:
52/199, 156/94, 156/268, 428/315.9
International Classes:
E04D5/12; E04D13/17; (IPC1-7): B32B31/00; D06N5/00
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