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公开(公告)号：US1592329A
公开(公告)日：1926-07-13
申请号：US3402425
申请日：1925-06-01
Applicant: BLACK JOHN C , RIAL WIRT D , HOWES RAYMOND T
Inventor： BLACK JOHN C , RIAL WIRT D , HOWES RAYMOND T
IPC: C10G53/12
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