Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4355957 | Blade damper | Jerry H. Griffin | 1982-10-26 |
| 4347040 | Blade to blade vibration damper | John Clifford Jones, Joel F. Sutton | 1982-08-31 |
PS
Perry P. Sifford
Overall (1982): #9,213 of 81,411Top 15%
2
Patents 1982