Assignee
FRIESEN DAVID
CA4 patents
Top patents by PatentIndex Score
US5006135AApr 9, 1991
Self cleaning screen
FRIESEN DAVID10 citations71
US4970849ANov 20, 1990
Swath pick-up for a combine harvester
FRIESEN DAVID19 citations71
US4498278AFeb 12, 1985
Harvester swath pick-up drive
FRIESEN DAVID5 citations60
US4129978ADec 19, 1978
Harvester swath pickup
FRIESEN DAVID4 citations60