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公开(公告)号：US1711689A
公开(公告)日：1929-05-07
申请号：US14281126
申请日：1926-10-20
Applicant: BELL TELEPHONE LABOR INC
Inventor： PIERCE PAUL H , MEANS WINTHROP J
IPC: H01H29/24
CPC classification number: H01H29/24
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