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公开(公告)号：EP0238638A4
公开(公告)日：1988-01-07
申请号：EP86906152
申请日：1986-09-23
Applicant: STALEY MFG CO A E
Inventor： KICKLE HUNTER L , URFER ALLEN D , CAHN ARNO , BORYS NELSON F , VERBOOM GILLES M L
CPC classification number: C11D1/662 , C11D11/0082
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