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公开(公告)号：US3394026A
公开(公告)日：1968-07-23
申请号：US30991463
申请日：1963-09-03
Applicant: NAT RES DEV
Inventor： PARR NORMAN LAWRENCE , MARTIN GEORGE FRANK
IPC: C03C8/02 , C04B35/584 , C04B35/591
CPC classification number: C04B35/591 , C03C8/02 , C04B35/584
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