-
公开(公告)号：US2687086A
公开(公告)日：1954-08-24
申请号：US7442449
申请日：1949-02-03
Applicant: IBM
Inventor： BEATTIE HORACE S , PAGE RALPH E , KERBIN JAMES F
IPC: B41L45/00
CPC classification number: B41L45/00
Search Results
1
records
(took 0.008 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
