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| Number | Title | Issue Date |
| 4844337 | Railway rail assembly A main railway rail and a guard rail are maintained in spaced apart relationship on a tie plate having a shoulder located between the rails by an elastically deformed clip. The clip has two end lengths extending from opposite ends of a central length. One... | 07/04/1989 |
| 4381839 | Gantry having adjustable side supports A large gantry for straddling and handling a heavy load comprises a pair of vertical support assemblies which support a horizontal load-bearing gantry beam. Each support assembly comprises three vertically disposed independently extendable/retractable hyd... | 05/03/1983 |
| 3945566 | Spring rail plate fasteners for direct railroad track fixation A railroad track fastener assembly consisting of a spring plate and a resilient seat for a railroad rail comprising a pad of resilient material positioned between the rail base and the base of a spring plate. The spring plate may be bolted to any type of ... | 03/23/1976 |
