-
公开(公告)号：US3478244A
公开(公告)日：1969-11-11
申请号：US3478244D
申请日：1966-12-13
Applicant: STEIGERWALD STRAHLTECH
Inventor： MEYER EDGAR , SCHEFFELS WILHELM
IPC: H01J37/067 , H01J1/02
CPC classification number: H01J37/067
Search Results
1
records
(took 0.007 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
