Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5349804 | Method of forming a building structure incorporating a seamless tube useful to make roofing battens and related method | Donald L. Van Erden, Juergen O. Rathgeber, John P. Wojcik | 1994-09-27 |
| 5319908 | Seamless tube useful to make roofing battens for incorporation within a building structure system | Donald L. Van Erden, Juergen O. Rathgeber, John P. Wojcik | 1994-06-14 |