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公开(公告)号：US1626775A
公开(公告)日：1927-05-03
申请号：US7199725
申请日：1925-11-28
Applicant: ROBERT JAMES WALKER
Inventor： GERARD APPELIAN HENRI , JOSEPH VANHOREN JULES
IPC: B62J1/08
CPC classification number: B62J1/08
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