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公开(公告)号：US2192418A
公开(公告)日：1940-03-05
申请号：US27744139
申请日：1939-06-05
Applicant: BAIRD TELEVISION LTD
Inventor： ALFRED SOMMER
IPC: H01J9/12
CPC classification number: H01J9/12 , Y10T428/1259
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公开(公告)号：US2206372A
公开(公告)日：1940-07-02
申请号：US27903939
申请日：1939-06-14
Applicant: BAIRD TELEVISION LTD
Inventor： ALFRED SOMMER
IPC: H01J9/12
CPC classification number: H01J9/125 , H01J2201/32 , Y10T428/1259
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