CJ

Charles W. Spehrley, Jr

SL Spectra Group Limited: 1 patents #39 of 68Top 60%
📍 Hartford, VT: #95 of 157 inventorsTop 65%
🗺 Vermont: #3,027 of 4,968 inventorsTop 65%
Overall (All Time): #3,818,076 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5189438 Dual reservoir and valve system for an ink jet head Nathan P. Hine, Paul A. Hoisington, Melvin L. Biggs, Richard Carden 1993-02-23