Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6737594 | Locking attachment for an electrical switching apparatus | Roger W. Helms, Craig J. Puhalla, Percy J. Lipsey, II | 2004-05-18 |
| 6703576 | Arc chute with valve and electric power switch incorporating same | Yu-Wei Chou, Ramon Javier Ojeda, Joseph B. Humbert | 2004-03-09 |