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公开(公告)号：US1500126A
公开(公告)日：1924-07-08
申请号：US32942419
申请日：1919-10-09
Applicant: EASTERN MFG COMPANY
Inventor： HANSON HUGO H , LEECOCK JOHN T , BLODGETT CHARLES A
IPC: C01D3/16
CPC classification number: C01D3/16
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