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公开(公告)号：US1947321A
公开(公告)日：1934-02-13
申请号：US11182126
申请日：1926-05-26
Applicant: R THOMAS & SONS COMPANY
Inventor： BLANCHARD VINCENT HAROLD , PARKER SLEEMAN HAROLD
IPC: H01B17/46
CPC classification number: H01B17/46
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公开(公告)号：US1854083A
公开(公告)日：1932-04-12
申请号：US18498727
申请日：1927-04-19
Applicant: R THOMAS & SONS COMPANY
Inventor： BLANCHARD VINCENT HAROLD
IPC: H01B17/46
CPC classification number: H01B17/46
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