- 专利标题: Exhaust ring for manufacturing semiconductors
-
申请号: US29183537申请日: 2003-06-12
-
公开(公告)号: USD494552S1公开(公告)日: 2004-08-17
- 设计人: Kazuyuki Tezuka , Takashi Kitazawa , Norihiko Amikura , Hiroshi Koizumi
- 申请人: Kazuyuki Tezuka , Takashi Kitazawa , Norihiko Amikura , Hiroshi Koizumi
- 优先权: JP2002-034492 20021212; JP2002-034497 20021212
信息查询