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公开(公告)号:US1368884A
公开(公告)日:1921-02-15
申请号:US32951019
申请日:1919-10-09
申请人: BOZEMAN JOHN W , JONES JOHN T
发明人: BOZEMAN JOHN W , JONES JOHN T
IPC分类号: F16K31/26
CPC分类号: F16K31/26 , Y10S137/901 , Y10T137/7297 , Y10T137/7365 , Y10T137/7446 , Y10T137/7478 , Y10T137/87917