EM

E. Joel Martin

SP Sperry: 1 patents #355 of 841Top 45%
SR Sperry Rand: 1 patents #22 of 84Top 30%
Overall (All Time): #2,357,733 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4444410 Ball hitch apparatus 1984-04-24
4187941 Bale restrictive flap 1980-02-12