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公开(公告)号：US2377159A
公开(公告)日：1945-05-29
申请号：US49236643
申请日：1943-06-26
Applicant: CALLITE TUNGSTEN CORP
Inventor： JACOB KURTZ , WALDIE JAMES D , JOSEPH SPINA
CPC classification number: C04B41/009 , C04B41/53 , C04B41/91 , Y10S451/908 , C04B35/52
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