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公开(公告)号：US3453394A
公开(公告)日：1969-07-01
申请号：US3453394D
申请日：1965-12-01
Applicant: BELL TELEPHONE LABOR INC
Inventor： LINSE JOHN E
CPC classification number: H04M1/58
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公开(公告)号：US3147345A
公开(公告)日：1964-09-01
申请号：US10566061
申请日：1961-04-26
Applicant: BELL TELEPHONE LABOR INC
Inventor： ALESSANDRO BUSALA , LINSE JOHN E
IPC: H04M1/60
CPC classification number: H04M1/60
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