-
公开(公告)号：US1382312A
公开(公告)日：1921-06-21
申请号：US29079419
申请日：1919-04-17
Applicant: NEWTON D BAKER
Inventor： OPPENHEIMER EDGAR A
IPC: B41L9/02
CPC classification number: B41L9/02
Search Results
1
records
(took 0.012 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
