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公开(公告)号：US1562286A
公开(公告)日：1925-11-17
申请号：US1427425
申请日：1925-03-09
Applicant: ROMEO BOLES MARSHALL , JOSEPH SNAVELY ARTHUR
Inventor： ROMEO BOLES MARSHALL , JOSEPH SNAVELY ARTHUR
CPC classification number: F02M63/00 , F02M2700/05 , H01F27/00
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