Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826423 | Construction of thermoplastic tubes with tubular ribs by helical winding upon a mandrel | Eric E. Kemp, James H. Miller | 1989-05-02 |
LS
Leonard F. Sansone
Overall (1989): #83,695 of 140,708Top 60%
1
Patents 1989