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Ventilating devices for hollow building walls
US 3,001,332 A
Filed
: 01/23/1959
Issued
: 09/26/1961
Est. Priority Date
: 01/23/1959
Status: Expired due to Term
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Current Assignee
Shepard J. Wilder
Original Assignee
Shepard J. Wilder
Inventors
Wilder, Shepard J.
Application Number
US03/788,682
Time in Patent Office
977 Days
Field of Search
US Class Current
52/302.1
CPC Class Codes
E04B 1/7076
Air vents for walls
Y10S 52/01
Hand tools for assembling b...
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