Gruber; Leopold R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Gruber; Leopold R..The latest application filed is for "machine for monitoring the vertical position of a contact wire of an overhead line".
- Gruber; Leopold R. - Scheibbs AT
| Patent | Date |
|---|---|
| Machine for monitoring the vertical position of a contact wire of an overhead line Grant 5,161,312 - Theurer , et al. November 10, 1 | 1992-11-10 |
| Rail tensioning apparatus Grant 4,983,801 - Theurer , et al. January 8, 1 | 1991-01-08 |
| Electric flash-butt welding machine and method of providing a welded joint between adjacent ends of rail sections Grant 4,929,816 - Theurer , et al. May 29, 1 | 1990-05-29 |
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