Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870863 | Modular switch device | William M. Duncan, George E. Glass, Edward A. McMillan, Frank S. Maney, James R. McConnell, Jr. +2 more | 1989-10-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870863 | Modular switch device | William M. Duncan, George E. Glass, Edward A. McMillan, Frank S. Maney, James R. McConnell, Jr. +2 more | 1989-10-03 |