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Image viewing apparatus
US 2,942,254 A
Filed
: 10/01/1956
Issued
: 06/21/1960
Est. Priority Date
: 10/01/1956
Status: Expired due to Term
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Current Assignee
George L. Beers
Original Assignee
George L. Beers
Inventors
Beers, George L.
Application Number
US03/613,198
Time in Patent Office
1,359 Days
Field of Search
US Class Current
348/834
CPC Class Codes
H01J 2229/8911
Large-scale devices, e.g. f...
H01J 2229/8922
Apparatus attached to vesse...
H01J 2229/8926
Active components, e.g. LCD...
H01J 29/185
measures against halo-pheno...
H01J 29/896
Anti-reflection means, e.g....
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