-
公开(公告)号：US2063176A
公开(公告)日：1936-12-08
申请号：US75400234
申请日：1934-11-20
Applicant: M WERK COMPANY
Inventor： ROWLAND MAGILL
IPC: D06L1/18
CPC classification number: D06L1/18
Search Results
1
records
(took 0.015 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
