-
公开(公告)号：US2565168A
公开(公告)日：1951-08-21
申请号：US10873249
申请日：1949-08-05
Applicant: FRED CHRISTOFFERSEN
Inventor： FRED CHRISTOFFERSEN
IPC: A01F3/00
CPC classification number: A01F3/00 , Y10T83/424 , Y10T83/667
-
公开(公告)号：US2115253A
公开(公告)日：1938-04-26
申请号：US12637437
申请日：1937-02-18
Applicant: FRED CHRISTOFFERSEN
Inventor： FRED CHRISTOFFERSEN
CPC classification number: A45C13/02 , A45C5/00 , Y10T70/5062 , Y10T70/5106 , Y10T70/5558 , Y10T70/60
-
Search Results
2
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
