telephony

These cuts may be seen in various books on the subject of telephony.

For all we know, thought-transference may become as common a thing as telephony is now.

Such condemnation is detrimental to the progress of telephony.

These condenser methods of telephony have not become commercial.

No other man has touched the apparatus of telephony at so many points.

He was the one President who really revelled in the comforts of telephony.

Since then, this railroad has become the chief beneficiary of the art of telephony.

No foreign country has reached the high American level of telephony.

He will be as closely in touch with the average man as with the art of telephony.

A simple explanation will serve to show the principle of Tesla's theory of wireless telegraphy and telephony.