RH

Robert G. Hammond

RT Rte: 1 patents #13 of 34Top 40%
Overall (All Time): #2,339,992 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4793612 Apparatus for practicing and teaching ball batting — 1988-12-27
4644111 Transformer switch — 1987-02-17