-
公开(公告)号：US1863648A
公开(公告)日：1932-06-21
申请号：US57967931
申请日：1931-12-08
Applicant: BERNARD CHARLES E
Inventor： BERNARD CHARLES E
IPC: A01D87/12
CPC classification number: A01D87/125 , A01F2015/0891
Search Results
1
records
(took 0.012 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
