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公开(公告)号:US2237537A
公开(公告)日:1941-04-08
申请号:US21477538
申请日:1938-06-20
发明人: YEATES PERCY M , JACKSON DONALD D
CPC分类号: B29C66/431 , B29C65/18 , B29C65/30 , B29C65/305 , B29C66/0326 , B29C66/1122 , B29C66/71 , B29C66/7352 , B29C66/8161 , B29C66/83513 , B29C66/91421 , B29C2793/009 , B29D22/003 , B29L2031/7128 , B29L2031/7414 , B31B70/85 , B31B2155/00 , B31B2160/10 , Y10T156/1313 , B29K2021/00