-
公开(公告)号：US2792779A
公开(公告)日：1957-05-21
申请号：US43793954
申请日：1954-06-21
Applicant: IBM
Inventor： TOEPPEN THURSTON H , HSU CHIEH S
IPC: B41J3/00
CPC classification number: B41J3/00
Search Results
1
records
(took 0.005 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
