-
公开(公告)号：US2075504A
公开(公告)日：1937-03-30
申请号：US7560236
申请日：1936-04-21
Applicant: BELL TELEPHONE LABOR INC
Inventor： CHEGWIDDEN RAYMOND A , HARAZIM STANLEY J , KUHN JOHN J , PETTIT IRVING C
IPC: H01F13/00
CPC classification number: H01F13/003
Search Results
1
records
(took 0.007 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
