-
公开(公告)号：US2894658A
公开(公告)日：1959-07-14
申请号：US62053256
申请日：1956-11-05
Applicant: SPECIALTIES DEV CORP
Inventor： RONALD SPIDY ALEXANDER
IPC: B63C9/19
Search Results
1
records
(took 0.011 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
