Ventilating system
United States Patent 1670656

Inventors:
Fleisher, Walter L.
Publication Date:
05/22/1928
View Patent Images:
Download PDF 1670656 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
AUDITORIUM VENTILATING CORP
Primary Class:
236/44C
Other Classes:
454/337, 261/DIG.034, 165/222, 165/59, 454/236
International Classes:
F24F3/14; F24F3/12