-
公开(公告)号：US2746387A
公开(公告)日：1956-05-22
申请号：US19447850
申请日：1950-11-07
Applicant: ROTOGRAPHIC INC
Inventor： NEUMANN JOHN W
CPC classification number: B41F9/003 , B31F1/07 , B31F2201/0723 , B31F2201/0792 , B41F19/04
Search Results
1
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
