Improvements followed in subsequent centuries, as various types of locks (ignition devices) were invented.

No other ignition device was necessary.

This information can be used to stop an ignition device from sparking, which is no longer necessary after the flame is lit.

Once the fire is built, the next step is to light the tinder, using either an ignition device such as a match or a lighter.

First offenders lose their licenses for a year and must use the ignition device for a year.

Feeling her way, she found one of the ignition devices she was seeking.

It looks as if it was used as some sort of primitive time-delay ignition device.

There are no suspects, he said, but what he described as an ignition device was found at the site.

It was during this period that he perfected the improved ignition device for gas- engines, the royalties from which ultimately made him wealthy.

One of the ignition devices had an insulated wire coming out of it.