Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849303 | Alloy coatings for electrical contacts | Arthur H. Graham | 1989-07-18 |
| 4846941 | Electroplating bath and process for maintaining plated alloy composition stable | Arthur H. Graham | 1989-07-11 |