Bowling Patents (Class 473/54)
- Including electrical cycle sequence control (Class 473/65)
- Including means for conserving energy (Class 473/66)
- With indicator (Class 473/67)
- Pin setter (Class 473/73)
- With compensation for pin offset (Class 473/92)
- Pit cushion or actuator therefor (Class 473/93)
- Pin guide or conveyor (Class 473/94)
- Pin sensor (Class 473/101)
- Pin spot (Class 473/102)