-
公开(公告)号：US3359071A
公开(公告)日：1967-12-19
申请号：US32996063
申请日：1963-12-12
Applicant: SIEMENS AG
Inventor： HANS MERKEL , JOACHIM DRABNER , WOLFGANG KRAUSE
CPC classification number: C01G28/007 , C22B30/04
Search Results
1
records
(took 0.011 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
