Waterbury Democrat., 1902-12-15
TT STOOD ALL TESTS.
Purin's Telephonic Inventions Adopt
 ed Abroad

ou ADFOau.
 NEW YORK, Dec. 15. = European rights of the patents of Michael Idvor sky Pupin of Columbia university gov erning his Improvements i'll modern long distance telephony have been sob abroad by Professor Pupin for 2 sun agglcgating more than S500,000. Hi invention makes telephony possibl, over distance four times greater thaI by the system generally in use at pres ent. So perfect is the transmission is articulation that it has been found iz actual experiments by the German gov ernment that conversation can be sat isfactorily maintained at q distance oi thirty feet from the receiver. although those telephoning arc q hundred miles apart.
 Professor Pupin's invention was first brought into publicity in January 1901 when he sold the patents governing his American rights to the American Bell Telephone and Telegraph company fo2 sum said by Professor Pupin at ths time to be about $500,000. His inven. tion, while not new, has now it's details and capability first authoritatively de. scribod Tn the recent official report of tho German government on the system, which verifies not only all that was claimed for the invention in this coun- try, but even goes far beyond the American estimates.
 For his foreign patents Professor Put pin not only received $500000, but will also get substantial royalty. From his invention, therefore, he is put in possession of at leas $1,000,o00, with, probabilities of large future income from royalties
 Tn this country Professor Pupin's ii' vention easily makes possible telephcn- ic communication between New York and San Francisco and has already been installed by the American Tele- phone and Telegraph company be- tween this city and Chicago, with great improvements resultant.
 Abroad it offers no difficulty in tha way of establishing direct telephonic communication between Berlin and London, Berlin and Copenhagen, Paris and St. Petersburg, Berlin and Stock holm, etc. The problem of transatlantic telephony has also become a possibility through this invention, but will only be feasible by the laying of new Allan. tic cable at a very large expense.
 It was to the Siemens & Halske com pany, the great electrical firm of Eu- rope with houses i'll Berlin, Paris and St. Petersburg, that Professor Pupin sold his European patents. For year Messrs F. Dolezalek and A. Ebeling, two engineers of the Siemens & Halske company, conducted investigations of the Pupin invention in conjunction with the German imperial postal tele- graph and telephone bureau.
 It was not until last week. that the Investigations of Pupin's system of tel ephcnic transmission over long distance air lines and cables were satisfactorily completed and negotiations for it's pur- chase consummated. The two Berlin engineers conducted thelr research for q period of one year on plans and speci- fications worked out by Professor Pu- pin in his laboratory in Columbia uni versity, in this city. The results ob- tained were i'll perfect agreement with Professor Pupin's mathematical theory. and they were so remarkable that their very recent publication in German sci ntific journals has produced quite sensation among German scientists and in the German press.
 While all these marvelously satisfac- tory experiments have been conducted ill Germany the American Telephone and Telegraph company has been quiet ly installing the Pupin system of in- ductance coils on it's tclephoaic con ductors in this country. The cable with coils is being manufactured and laid as fast as possible It is interesting to note that this wonderful new invention will soon be in operation in the very hcart of New York.
 Professor Pupin is about forty-twO years old. He was graduated from Co lumbia in 1883.
 Mexican Finances.