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公开(公告)号：US2262891A
公开(公告)日：1941-11-18
申请号：US25773239
申请日：1939-02-21
Applicant: JOHN GORTNER
Inventor： JOHN GORTNER
IPC: A63F5/04
CPC classification number: A63F5/02 , A63F5/0088 , A63F7/048 , A63F2007/4012
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