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公开(公告)号：US1174748A
公开(公告)日：1916-03-07
申请号：US1914849327
申请日：1914-07-06
Applicant: MARCIL PHILIP H
Inventor： MARCIL PHILIP H
CPC classification number: F01L1/06 , Y10T74/2101 , Y10T74/2107
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