发明授权
- 专利标题: Filter tips for cigarettes
- 专利标题(中): 过滤嘴香烟
-
申请号: US3595137D申请日: 1968-08-09
-
公开(公告)号: US3595137A公开(公告)日: 1971-07-27
- 发明人: MOLINS DESMOND WALTER , PRESTON EDWARD GEORGE , BARBER DONALD JOHN
- 申请人: MOLINS MACHINE CO LTD
- 专利权人: Molins Machine Co Ltd
- 当前专利权人: Molins Machine Co Ltd
- 优先权: GB3829367 1967-08-18; GB3945667 1967-08-29; GB3945767 1967-08-29
- 主分类号: A24D3/02
- IPC分类号: A24D3/02 ; B31D
摘要:
The manufacture of cigarette filters containing a particulate filtering material in a compartment in which beads of polystyrene are expanded within the compartment to take up excess space in it and prevent smoke bypassing the filtering material.
信息查询