Title:
Air curtain
Document Type and Number:
United States Patent 3190207

Inventors:
Dan, Weisz
Publication Date:
06/22/1965
View Patent Images:
Images are available in PDF form when logged in. To view PDFs, Login  or  Create Account (Free!)
Referenced by:
View patents that cite this patent
Export Citation:
Click for automatic bibliography generation
Assignee:
P J MAC INC
Primary Class:
454/191
Other Classes:
454/192
International Classes:
F24F9/00; F24F13/06
US Patent References:
0774730
0983877
2241354Method for making high temperature refractories
2516432Fluid film closure for building entrances and exits
3021776Method and apparatus for ventilating laboratory fume hoods
Foreign References:
DE971345C
GB481991A
GB872601A
IT567039B




<- Previous Patent (Air conditioning sys...)   |   Next Patent (Ceiling construction) ->