-
公开(公告)号：US2513387A
公开(公告)日：1950-07-04
申请号：US77068747
申请日：1947-08-26
Applicant: STANDARD TELEPHONES CABLES LTD
Inventor： HSIU WEI PEI
CPC classification number: H01J19/30 , H01J19/38 , H01J2893/0015 , H01J2893/0021 , Y10T156/1089
Search Results
1
records
(took 0.02 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
