-
公开(公告)号：US1639113A
公开(公告)日：1927-08-16
申请号：US75570624
申请日：1924-12-13
Applicant: SENGER EDMOND H
Inventor： SENGER EDMOND H
IPC: D06F1/08
CPC classification number: D06F1/08
Search Results
1
records
(took 0.01 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
