-
公开(公告)号：US2763898A
公开(公告)日：1956-09-25
申请号：US22819651
申请日：1951-05-25
Applicant: BRITISH CELANESE
IPC: D02G1/12
CPC classification number: D02G1/12
Search Results
1
records
(took 0.008 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
