-
公开(公告)号：US3471651A
公开(公告)日：1969-10-07
申请号：US3471651D
申请日：1967-01-13
Applicant: IBM
Inventor： SAIA JERRY , SPENCER DARYL L
CPC classification number: H04M19/026
Search Results
1
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
