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公开(公告)号：US1961368A
公开(公告)日：1934-06-05
申请号：US64553732
申请日：1932-12-03
Applicant: TELETYPE CORP
Inventor： STANLEY LARSON EDWARD
IPC: G01L1/04
CPC classification number: G01L1/04
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公开(公告)号：US2005748A
公开(公告)日：1935-06-25
申请号：US67858733
申请日：1933-07-01
Applicant: TELETYPE CORP
Inventor： STANLEY LARSON EDWARD
IPC: H04L17/20
CPC classification number: H04L17/20
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