-
公开(公告)号：US1456728A
公开(公告)日：1923-05-29
申请号：US57862822
申请日：1922-07-31
Applicant: FRANK ROSS E
Inventor： FRANK ROSS E
IPC: A47G29/18
CPC classification number: A47G29/18
Search Results
1
records
(took 0.02 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
