Electric lamp and discharge devices – Cathode ray tube – Ray generating or control
Patent
1976-11-12
1977-10-11
Segal, Robert
Electric lamp and discharge devices
Cathode ray tube
Ray generating or control
250512, 138157, H01J 2902, G21K 104
Patent
active
040538087
ABSTRACT:
An electron beam collimator formed by two pairs of multi-leaved corner plates connected by slideable members permitting the dimensions of the collimator to be altered.
REFERENCES:
patent: 1959756 (1934-05-01), Ferm
patent: 3942019 (1976-03-01), Claridge et al.
Segal Robert
Trifari Frank R.
U.S. Philips Corporation
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