Wind-responsive louver construction
United States Patent 2894445
US Patent References:
/0961016.html
- - 0961016

/1014679.html
- - 1014679

/1018585.html
- - 1018585

Automatically opening and closing window
- - 1949793

Louver ventilator
- - 2340570


Inventors:
Schulze, Harvey F.
Publication Date:
07/14/1959
View Patent Images:
Assignee:
Schulze, Harvey F.
Primary Class:
Other Classes:
74/480B
International Classes:
F24F13/15
Foreign References:
GB188602758A