-
公开(公告)号：US2814750A
公开(公告)日：1957-11-26
申请号：US43891654
申请日：1954-06-24
Applicant: EITEL MCCULLOUGH INC
Inventor： POLESE JAMES P
CPC classification number: H01J19/34 , H01J19/42 , H01J2893/0002 , H01J2893/0003
Search Results
1
records
(took 0.008 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
