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公开(公告)号：US3074912A
公开(公告)日：1963-01-22
申请号：US4912560
申请日：1960-08-12
Applicant: AIR REDUCTION , STALEY MFG CO A E
Inventor： BLADES CHARLES E , BARRINGTON LEONARD F
CPC classification number: C08F2/38
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