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公开(公告)号:US3293072A
公开(公告)日:1966-12-20
申请号:US12061761
申请日:1961-06-29
申请人: VITTA CORP
CPC分类号: C04B41/009 , B22F7/08 , C04B35/63424 , C04B37/006 , C04B37/026 , C04B41/51 , C04B41/88 , C04B2237/122 , C04B2237/126 , C04B2237/32 , C04B2237/40 , C04B2237/708 , C04B2237/765 , C04B2237/80 , Y10T428/31616 , Y10T428/31649 , Y10T428/31699 , C04B41/4505 , C04B41/4511 , C04B41/46 , C04B41/483 , C04B41/5022 , C04B41/48 , C04B35/00