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公开(公告)号：US2522249A
公开(公告)日：1950-09-12
申请号：US65659246
申请日：1946-03-23
Applicant: GLENN L MARTIN CO
Inventor： BAKER SAMUEL K
CPC classification number: F16K31/105 , F01P7/16 , Y10T137/87249
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