Title:
Electric discharge device comprising an activated cold cathode
United States Patent 3105917


Inventors:
Broek, Cornelis Arnoldus Maria
Albertus, Venema
Application Number:
US8698561A
Publication Date:
10/01/1963
Filing Date:
02/03/1961
Assignee:
PHILIPS CORP
Primary Class:
Other Classes:
313/346R, 313/355, 313/594
International Classes:
H01J17/06
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US Patent References:
2504581Electric discharge device1950-04-18
2499192Dispenser type cathode1950-02-28
2175345Electric gaseous discharge device1939-10-10
2147447Glow cathode1939-02-14