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公开(公告)号:US1176642A
公开(公告)日:1916-03-21
申请号:US1912729254
申请日:1912-11-04
Applicant: GEN ELECTRIC
Inventor: BEECHLYN JOHN T
CPC classification number: G07F17/24
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公开(公告)号:US1287298A
公开(公告)日:1918-12-10
申请号:US17848517
申请日:1917-07-03
Applicant: GEN ELECTRIC
Inventor: HALVORSON CROMWELL A B JR , BEECHLYN JOHN T
CPC classification number: F21V7/09 , Y10T29/496
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公开(公告)号:US1171193A
公开(公告)日:1916-02-08
申请号:US1912688180
申请日:1912-04-03
Applicant: GEN ELECTRIC
Inventor: HALVORSON CROMWELL A B JR , BEECHLYN JOHN T
CPC classification number: H01J1/20 , B23K11/3063
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公开(公告)号:US993946A
公开(公告)日:1911-05-30
申请号:US1908448795
申请日:1908-08-17
Applicant: GEN ELECTRIC
Inventor: BEECHLYN JOHN T
CPC classification number: H01H50/88
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