Light controlling apparatus
United States Patent 1887650

Inventors:
Larner, Chester W.
Sanford, Sydney J.
Publication Date:
11/15/1932
View Patent Images:
Download PDF 1887650 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Larner, Chester W.
Sanford, Sydney J.
Primary Class:
362/241
Other Classes:
353/35, 359/734, 353/98
International Classes:
G03B21/20