GASEOUSLY FORMED CURTAINS
United States Patent 3462920
US Patent References:
Method and apparatus for ventilating laboratory fume hoods
- - 3021776
Apparatus for shielding door openings by means of air
- - 3207056
Air curtains
- - 3282193
System for ventilating clean rooms
- - 3380369
Portable superclean air column device
- - 3385036
Method and apparatus for ventilating laboratory fume hoods
- - 3021776
Apparatus for shielding door openings by means of air
- - 3207056
Air curtains
- - 3282193
System for ventilating clean rooms
- - 3380369
Portable superclean air column device
- - 3385036
Inventors:
Denny, Douglas Frank
Publication Date:
08/26/1969
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Export Citation:
Assignee:
BELL S MEDICAL PRODUCTS LTD
Primary Class:
Other Classes:
454/188, 55/467, 55/DIG.029
International Classes:
A61G13/00; F24F3/16; B01D46/42
US Patent References:
| 3394755 | Air screen creating-air conditioning apparatus |