Issued Patents 1989
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884509 | Mobile tie gang apparatus | Johann Hansmann, Friedrich Oellerer | 1989-12-05 |
| 4881467 | Continuously advancing track maintenance or rehabilitation machine | — | 1989-11-21 |
| 4878435 | Mobile tie exchange machine arrangement | — | 1989-11-07 |
| 4862806 | Mobile tie gang apparatus and tie exchange method | Herbert Worgotter | 1989-09-05 |
| 4858696 | Mobile ballast cleaning machine | Manfred Brunninger | 1989-08-22 |
| 4854243 | Mobile track renewal machine | — | 1989-08-08 |
| 4835887 | Mobile machine for distributing and shaping the ballast bed of a railroad track | — | 1989-06-06 |
| 4829907 | Mobile installation for loading, transporting and unloading as well as exchanging railroad ties | Johann Hansmann, Friedrich Oellerer | 1989-05-16 |
| 4825768 | Mobile machine for leveling, lining and tamping a track switch | Wilhelm Praschl, Friedrich Peitl | 1989-05-02 |
| 4813488 | Ballast cleaning machine | — | 1989-03-21 |
| 4809617 | Box car | Johann Hansmann | 1989-03-07 |
| 4809614 | Mobile tie gang apparatus | Johann Hansmann, Herbert Worgotter | 1989-03-07 |
| 4799430 | Mobile ballast cleaning apparatus | — | 1989-01-24 |
| 4794862 | Track leveling and ballast tamping machine | — | 1989-01-03 |
| 4794861 | Tie exchange method | Johann Hansmann, Friedrich Oellerer | 1989-01-03 |