HD

Harold C. Pinfold, deceased

Overall (All Time): #2,304,244 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5243150 Ribbon transducers Graham Bank, by Laurence P. Ross, executor 1993-09-07
5148888 Ribbon transducers Graham Bank, by Laurence P. Ross, executor 1992-09-22