Ion producing mechanism
United States Patent 2848620
US Patent References:
Positive-ion emitter
- - 1767218


Inventors:
Backus, John G.
Publication Date:
08/19/1958
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Assignee:
Backus, John G.
Primary Class:
250/425
Other Classes:
313/362.100
International Classes:
H01J49/12; H01J49/10