Multi-chamber hollow cathode low voltage electron beam apparatus
United States Patent 3411035

Inventors:
Necker, William C.
Mcvey, Charles I.
Publication Date:
11/12/1968
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Assignee:
GEN ELECTRIC
Primary Class:
315/111.810
Other Classes:
313/356, 219/121.240, 219/121.330, 219/121.270, 313/348, 313/577
International Classes:
H01J37/06; H01J37/077




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