-
公开(公告)号：US2944172A
公开(公告)日：1960-07-05
申请号：US83622659
申请日：1959-08-26
Applicant: ZEISS CARL
Inventor： WOLFGANG OPITZ , HELMUT SPRUCK , HEINZ STEIGERWALD KARL
IPC: B23K15/00 , H01J37/09 , H01J37/16 , H01J37/30 , H01J37/301 , H01J37/304
CPC classification number: H01J37/301 , B23K15/0013 , H01J37/09 , H01J37/165 , H01J37/3005 , H01J37/304 , Y10S164/04
Search Results
1
records
(took 0.012 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
