RBM wrote:

As others have said, if a 240 volt device requires a neutral, it uses 120
volts for some part of it. With the exception of older electric ranges and
cooking equipment, any 240 volt device that requires a neutral would
typically be hard wired or furnished with a 4 wire outlet and cord

It's not so much the age of the appliance as it is the age and wiring of
the building that determines whether a 240 volt range or dryer has a 3
or 4 wire cord. The appliances are typically sold without cords for
that reason. It also helps keep the advertised price down. If a 3 wire
cord is needed, the neutral terminal on the appliance is bonded to the
frame.