Title:
Electrooptical apparatus
United States Patent 1841034


Inventors:
Ives, Herbert E.
Application Number:
US32772028A
Publication Date:
01/12/1932
Filing Date:
12/21/1928
Assignee:
WESTERN ELECTRIC CO
Primary Class:
Other Classes:
313/152, 313/577, 445/16
International Classes:
H01J40/06
View Patent Images: