Title:
Acoustical board
United States Patent 1875074

Inventors:
Mason, William H.
Publication Date:
08/30/1932
View Patent Images:
Download PDF 1875074 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
MASONITE CORP
Primary Class:
181/293
Other Classes:
428/167
International Classes:
E04B1/86; E04B1/84