Land Vehicles: Animal Draft Appliances Patents (Class 278)
- Resilient (Class 278/53)
- Safety attachments (Class 278/54)
- Plural (Class 278/55)
- Special-position release (Class 278/56)
- Removable transverse pin or bolt (Class 278/60)
- Opposed lug engaging or carrying jaws (Class 278/66)
- L-head type (Class 278/67)
- T-head type (Class 278/68)
- D-head type (Class 278/72)
- Ball and socket (Class 278/80)
