Lam Research 853-012350-002 Outer Gate Assembly Rev. H 4420 Etcher Used Working Lam Research 853-012350-002--230D Outer Gate Assembly 4420 Etcher Used Working Lam Research 853-012350-002-D Outer Gate Assembly 4420 Etcher Used Working Lam Research 853-012350-002-F-230D Outer Gate Assembly ...