|
2021
|
Invention
|
Station time, grade time, stop time, and relay time testing device.
The Station Time Grade Time ... |
|
2019
|
Invention
|
Ups traction elevator li-ion battery back-up system.
The uninterruptable battery supply (UPS) tr... |
|
2016
|
Invention
|
Vehicle prediction module.
The present invention improves the way how a vehicle's arrival time a... |
|
2013
|
Invention
|
Passive underground flood protection. Some examples provide methods, systems, devices and/or appa... |
|
2002
|
P/S
|
Transportation of passengers with disabilities by motor vehicle |
|
1984
|
Invention
|
Transfer wheel assembly for transporting disabled railway vehicle. A transfer wheel assembly is p... |
|
1982
|
Invention
|
Multi-segment electrically insulated rail joint. An insulated joint is provided for use between s... |
|
1980
|
Invention
|
Resilient rail fastener assembly for curved track. A resilient rail fastener assembly for curved ... |
|
1974
|
Invention
|
Spring rail plate fasteners for direct railroad track fixation. A railroad track fastener assembl... |
