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公开(公告)号：US1598888A
公开(公告)日：1926-09-07
申请号：US8493226
申请日：1926-01-30
Applicant: GEORGE A YOUNG
Inventor： PETER STEIN
IPC: F17D1/05
CPC classification number: F17D1/05 , Y10T137/4891
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