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公开(公告)号:US3469690A
公开(公告)日:1969-09-30
申请号:US3469690D
申请日:1967-07-28
Applicant: TERLECO INC
Inventor: ERVIN EVANDER M
IPC: B07C5/06 , B07C5/14 , B07C5/04 , B07B13/04 , B07C1/10
CPC classification number: B07C5/065 , B07C5/14