-
公开(公告)号：US2104656A
公开(公告)日：1938-01-04
申请号：US74586234
申请日：1934-09-28
Applicant: GEN ELECTRIC
Inventor： KREJCI ROBERT F
IPC: B65H59/38
CPC classification number: B65H59/38
-
公开(公告)号：US2165105A
公开(公告)日：1939-07-04
申请号：US15972737
申请日：1937-08-18
Applicant: GEN ELECTRIC
Inventor： KREJCI ROBERT F , ZABEL WILLIAM P
IPC: H01K3/04
CPC classification number: H01K3/04
-
Search Results
2
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
