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公开(公告)号:US3152085A
公开(公告)日:1964-10-06
申请号:US12979561
申请日:1961-08-07
Applicant: BELL TELEPHONE LABOR INC
Inventor: BALLMAN ALBERT A , LINARCS JR ROBERT C , ULTERT LE GRAND G VAN
CPC classification number: H01S3/1688 , C01G31/006 , C01P2002/54 , C09K11/7776 , C30B9/00 , C30B29/30