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公开(公告)号：US775613A
公开(公告)日：1904-11-22
申请号：US1903160546
申请日：1903-06-08
Applicant: STADLER MICHAEL
Inventor： STADLER MICHAEL
CPC classification number: B23D5/02 , Y10T82/14 , Y10T409/502788
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