Title:
Method of treating acoustical members and the article produced thereby
United States Patent 1836089


Inventors:
Schweitzer, Edmund O.
Application Number:
US30380828A
Publication Date:
12/15/1931
Filing Date:
09/04/1928
Assignee:
Schweitzer, Edmund O.
Primary Class:
Other Classes:
84/274, 204/157.15, 204/157.68, 250/492.1, 984/102
International Classes:
G10D1/00
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