He never took this idea further than a small experimental version.

So far, researchers have made only experimental versions of these devices.

This is among the programs that have already received Federal help as pilot projects under an earlier, experimental version of the national service measure.

The bureau plans experimental alternative versions of the index for 1995.

There was also an experimental version of this model with a full cantilever wing.

Several experimental versions of the devices, known as heterojunctions, have been built.

At the moment, more than 80 companies have been authorized to start experimental versions of such services in the United States.

We were not able to replicate it on the experimental version either, no matter how hard we tried.

This experimental version was fitted with a M-34 engine.

An experimental, unstable version called Lepton had the 2.4 kernel.