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公开(公告)号：US2509457A
公开(公告)日：1950-05-30
申请号：US6006048
申请日：1948-11-15
Applicant: SCHWENK EMIL M
Inventor： SCHWENK EMIL M
IPC: B62M3/08
CPC classification number: B62M3/08 , Y10T74/209 , Y10T74/2168
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