Ventilating devices for hollow building walls
United States Patent 3001332
US Patent References:
/0192688.html
- - 0192688

Ventilator
- - 2804006

Hollow building wall ventilating device
- - 2840867


Inventors:
Wilder, Shepard J.
Publication Date:
09/26/1961
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Assignee:
Wilder, Shepard J.
Primary Class:
52/302.100
Other Classes:
52/DIG.001, 52/534, 227/68, 52/531, 454/185
International Classes:
E04B1/70