Daryl Hertema

RIRitchie Industries: 1 patents #1 of 2Top 50%

Beaman, IA: #1 of 1 inventorsTop 100%

Iowa: #89 of 549 inventorsTop 20%

Overall (1989): #122,979 of 140,708Top 90%

1 Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4856459	Heater and thermostat arrangement for animal waterers	Leland G. Wiseman	1989-08-15