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公开(公告)号：US1685205A
公开(公告)日：1928-09-25
申请号：US75648924
申请日：1924-12-17
Applicant: GEN ZEOLITE COMPANY
Inventor： STEIN MILTON F
IPC: G05D7/01
CPC classification number: G05D7/0193 , Y10T137/7759 , Y10T137/7831
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