-
公开(公告)号：US2145076A
公开(公告)日：1939-01-24
申请号：US13427837
申请日：1937-04-01
Applicant: RHODIACETA
Inventor： PAUL EHRENSTEIN
IPC: D01F2/28
CPC classification number: D01F2/28
Search Results
1
records
(took 0.008 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
