Chain Making Patents (Class 59/1)
- Coiling, cutting, bending, curbing (Class 59/17)
- Feeding, cutting, bending, welding (Class 59/18)
- Feeding, cutting, bending, wrapping (Class 59/19)
- Coiling, cutting, assembling (Class 59/20)
- Bending and eye forming (Class 59/21)
- Bending and welding (Class 59/22)
- Cutting and bending (Class 59/23)
- Winding and welding (Class 59/26)