-
公开(公告)号：US1337383A
公开(公告)日：1920-04-20
申请号：US26090218
申请日：1918-11-02
Applicant: GREGOR ALEXOVITS
Inventor： GREGOR ALEXOVITS
IPC: B63B22/08
CPC classification number: B63B22/08 , B63B2201/04 , B63B2201/06
Search Results
1
records
(took 0.008 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
