Makarov. |
a knife switch breaks a circuit; a knife switch interrupts a circuit; a knife switch opens a circuit; a knife-blade switch breaks a circuit; a knife-blade switch interrupts a circuit; a knife-blade switch opens a circuit; knife switch breaks a circuit; knife switch interrupts a circuit; knife switch opens a circuit; knife-blade switch breaks a circuit; knife-blade switch interrupts a circuit; knife-blade switch opens a circuit |