-
公开(公告)号：US2248585A
公开(公告)日：1941-07-08
申请号：US15995037
申请日：1937-08-19
Applicant: ROSS OSCAR A , SHACKLEFORD FORREST W
Inventor： ROSS OSCAR A , SHACKLEFORD FORREST W
IPC: A47L9/00
Search Results
1
records
(took 0.012 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
