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公开(公告)号：US3074422A
公开(公告)日：1963-01-22
申请号：US79952659
申请日：1959-03-16
Applicant: DEGREMONT ACFI
Inventor： ROGER LEVIEL
CPC classification number: B01J4/02 , G05D7/0166 , Y10T137/2536 , Y10T137/2572 , Y10T137/7788
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公开(公告)号：US3068172A
公开(公告)日：1962-12-11
申请号：US6226960
申请日：1960-10-12
Applicant: DEGREMONT ACFI
Inventor： ROGER LEVIEL , PAUL CROCE-SPINELLI
IPC: C02F1/52
CPC classification number: B01D21/2405 , B01D21/0042 , B01D21/2427 , C02F1/5281
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