Variable intensity lamp
United States Patent 3379869
US Patent References:
Projection photographic color printing apparatus
- - 3222985


Inventors:
Dorman, William H.
Publication Date:
04/23/1968
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Assignee:
CORNING GLASS WORKS
Primary Class:
362/231
International Classes:
F21S8/00; F21S8/10; F21S10/02; F21V5/00; F21V7/00; F21V9/10; F21V13/04; F21V7/06; F21S10/00; F21V9/00; F21V13/00