-
1.发明授权
公开(公告)号：US3450877A
公开(公告)日：1969-06-17
申请号：US3450877D
申请日：1965-10-22
Applicant: GLENN W ZIMMER
Inventor： ZIMMER GLENN W
CPC classification number: H01J47/06
Search Results
1
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
