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公开(公告)号：US1402251A
公开(公告)日：1922-01-03
申请号：US37320020
申请日：1920-04-12
Applicant: RAYMOND JR JOHN
Inventor： RAYMOND JR JOHN
IPC: B65G37/00
CPC classification number: B65G37/00 , B65G2812/016
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公开(公告)号：US1345634A
公开(公告)日：1920-07-06
申请号：US30424719
申请日：1919-06-14
Applicant: RAYMOND JR JOHN
Inventor： RAYMOND JR JOHN
CPC classification number: B65G17/30 , B65G17/063 , B65G2201/04
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