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公开(公告)号：US1444425A
公开(公告)日：1923-02-06
申请号：US56270422
申请日：1922-05-22
Applicant: BRITISH ARC WELDING COMPANY LT
Inventor： HERBERT OGDEN
IPC: F02D1/08
CPC classification number: F02D1/08 , Y10T137/108
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