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公开(公告)号：US1933976A
公开(公告)日：1933-11-07
申请号：US32799528
申请日：1928-12-22
Applicant: WIRED RADIO INC
Inventor： HANSON MALCOLM P
IPC: H01J13/48
CPC classification number: H01J13/48 , H01J2893/0058
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公开(公告)号：US1692118A
公开(公告)日：1928-11-20
申请号：US19022327
申请日：1927-05-10
Applicant: WIRED RADIO INC
Inventor： HANSON MALCOLM P
IPC: H04B1/54
CPC classification number: H04B1/54
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