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公开(公告)号：US2553218A
公开(公告)日：1951-05-15
申请号：US53356244
申请日：1944-05-01
Applicant: GEN MOTORS CORP
Inventor： JOSEPH STUART , BERKLEY WARREN D
IPC: B64D15/02
CPC classification number: B64D15/02
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公开(公告)号：US2476638A
公开(公告)日：1949-07-19
申请号：US52926144
申请日：1944-04-03
Applicant: GEN MOTORS CORP
Inventor： JOSEPH STUART , BERKLEY WARREN D
IPC: B64C11/34
CPC classification number: B64C11/346
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