-
公开(公告)号：US3016527A
公开(公告)日：1962-01-09
申请号：US75906758
申请日：1958-09-04
Applicant: BELL TELEPHONE LABOR INC
Inventor： GILBERT EDGAR N , MOORE EDWARD F
IPC: H03M7/40
CPC classification number: H03M7/4025
Search Results
1
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
