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公开(公告)号：US3133748A
公开(公告)日：1964-05-19
申请号：US22079962
申请日：1962-08-31
Applicant: GUNNERSON JOHN E
Inventor： GUNNERSON JOHN E
IPC: B62K25/30
CPC classification number: B62K25/30 , B62K2201/04
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