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公开(公告)号：US2160929A
公开(公告)日：1939-06-06
申请号：US4338435
申请日：1935-10-03
Applicant: STANDARD OIL DEV CO
Inventor： PRINCE WARNER JAMES , VOORHIES JR ALEXIS
IPC: A01N61/02
CPC classification number: A01N61/02
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