-
公开(公告)号：US1780682A
公开(公告)日：1930-11-04
申请号：US33394729
申请日：1929-01-21
Applicant: MALCOLM MCCORMICK HUGH
Inventor： MALCOLM MCCORMICK HUGH
IPC: A24F1/00
CPC classification number: A24F1/00 , A24F2700/04
Search Results
1
records
(took 0.01 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
