New York Times, November 22, 1906, page 4:
BACKS WIRELESS INVENTION.
Lord Armstrong Buys Poulsen's Patent Rights in America.
COPENHAGEN, Nov. 21.--That Lord Armstrong contemplates interesting himself in wireless telegraphy in America is indicated by the announcement made to-day that he has purchased for $500,000 the patent rights for America of the wireless telegraph system invented by Waldemar Poulsen, Danish engineer.
Sigurd Bojesen, a Danish resident of London, is associated in the enterprise with Lord Armstrong.
The chief feature of Waldemar Poulsen's wireless system is said to be the substitution of a continuous flow of energy to the receiver for the old method of intermittent sparks, and it is asserted that the system solves the vexed question of interference between stations working simultaneously.