-
公开(公告)号：US2287243A
公开(公告)日：1942-06-23
申请号：US34628840
申请日：1940-07-19
Applicant: BELL TELEPHONE LABOR INC
Inventor： HEBERT CHARLES A , WIER ANTHONY J
IPC: H05K9/00
CPC classification number: H05K9/0062
Search Results
1
records
(took 0.011 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
