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公开(公告)号:US2151248A
公开(公告)日:1939-03-21
申请号:US22447138
申请日:1938-08-12
Inventor: VAUGHAN WILLIAM H
IPC: C10G5/06
CPC classification number: C10G5/06 , Y10S62/926
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公开(公告)号:US2133774A
公开(公告)日:1938-10-18
申请号:US16019237
申请日:1937-08-20
Inventor: VAUGHAN WILLIAM H
IPC: C10G5/06
CPC classification number: C10G5/06 , Y10S62/926
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公开(公告)号:US2198098A
公开(公告)日:1940-04-23
申请号:US25474739
申请日:1939-02-06
Inventor: VAUGHAN WILLIAM H
IPC: C10G5/06
CPC classification number: C10G5/06 , Y10S62/926
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