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公开(公告)号：US2039009A
公开(公告)日：1936-04-28
申请号：US458935
申请日：1935-02-01
Applicant: GEN MOTORS CORP
Inventor： LAMPMAN GEORGE W , COOPER GRANT F
IPC: F16L41/08
CPC classification number: F16L41/088 , Y10T16/05
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