Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5970795 | Apparatus and method for testing attenuation of in-use insert hearing protectors | Michael F. Seidmann, Roger P. Juneau, Gregory R. Siegle | 1999-10-26 |
| 5757930 | Apparatus and method for testing attenuation of in-use insert hearing protectors | Michael F. Seidemann, Roger P. Juneau | 1998-05-26 |