Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5737190 | Digital input/output circuit board | Arthur James Marshall | 1998-04-07 |
| 5724614 | Circuits provide input/output module connections having the input receptacle being connected to neutral wiring terminal and the output receptacle being connected to hot wiring terminal | Milton W. Garland, Arthur James Marshall | 1998-03-03 |