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公开(公告)号：US929512A
公开(公告)日：1909-07-27
申请号：US1909482137
申请日：1909-03-08
Applicant: STUDHOLME JOSEPH FRANCIS
Inventor： STUDHOLME JOSEPH FRANCIS
CPC classification number: F04C18/3568 , F05C2201/0439
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