IP Library › Granted Patent US 5,355,963
Granted Patent Utility
US 5,355,963 · App. 07/955,974

Rotary or active harrow

Inventors: Stanley Joseph Boyko, Darryl Kerr
Patented Case View Patent ↗
Granted: Oct 18, 1994 Filed: Oct 2, 1992
Inventors
Stanley Joseph Boyko
Darryl Kerr
Assignee (at issue)
F. P. Bourgault Industries Air Seeder Division Ltd.

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Quick Facts
Patent No.
US 5,355,963
App. No.
07/955,974
Filed
1992-10-02
Granted
1994-10-18
Kind
A