Vehicle Patents (Class 188/2R)
- Train (Class 188/34)
- Wheel and rail (Class 188/35)
- Track (Class 188/38)
- Rail (Class 188/41)
- Equalizing series (Class 188/46)
- Connected trucks (Class 188/47)
- Maximum traction type (Class 188/48)
- Four wheel opposing (Class 188/49)
- Four wheel spreading (Class 188/52)
- Clasp (Class 188/56)
- Top shoes (Class 188/57)
- Disk on axle (Class 188/58)
- Positive lock (Class 188/60)
- One-way (Class 188/61)
- On track (Class 188/62)