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公开(公告)号：US2057131A
公开(公告)日：1936-10-13
申请号：US70558634
申请日：1934-01-06
Applicant: FRETZ MOON TUBE COMPANY INC
Inventor： BARTON JAMES J , CLOUSE AUGUSTUS C
IPC: B65G47/82
CPC classification number: B65G47/82
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