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公开(公告)号：US1738179A
公开(公告)日：1929-12-03
申请号：US18419927
申请日：1927-04-16
Applicant: FOSTER ERNEST C
Inventor： FOSTER ERNEST C
CPC classification number: F16H48/16 , F16D41/12 , F16H48/12 , F16H2048/405 , Y10T74/19005
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