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公开(公告)号：US919640A
公开(公告)日：1909-04-27
申请号：US1901070020
申请日：1901-07-29
Applicant: GEN ELECTRIC
Inventor： ROBINSON LEWIS T , BADEAU CHARLES C
CPC classification number: G01R11/60
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公开(公告)号：US882586A
公开(公告)日：1908-03-24
申请号：US1902125194
申请日：1902-09-29
Applicant: GEN ELECTRIC
Inventor： ROBINSON LEWIS T
CPC classification number: G01D15/16
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