Variable focusing, multi-beam, illuminating device
United States Patent 3005087
Inventors:
Klein, Michael R.
Publication Date:
10/17/1961
Assignee:
Klein, Michael R.
Other Classes:
362/401, 362/275, 362/250
International Classes:
F21S8/00; F21V17/02; F21V21/28; F21V17/00; F21V21/14