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公开(公告)号：US2522867A
公开(公告)日：1950-09-19
申请号：US72273447
申请日：1947-01-17
Applicant: GOLDAMMER CLARA M , FRED GOLDAMMER
Inventor： GOLDAMMER CLARA M , FRED GOLDAMMER
CPC classification number: B62H1/02 , B62K25/005 , B62K25/02 , B62K2201/04
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