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公开(公告)号：US1225845A
公开(公告)日：1917-05-15
申请号：US9909916
申请日：1916-05-22
Applicant: A D BROWNLIE , GILLASPY THOMAS J , NAYSMITH FRANK M , CARL FORREST D
Inventor： GILLASPY THOMAS J , NAYSMITH FRANK M , CARL FORREST D
CPC classification number: B29C73/30
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