phonogfp wrote: No doubt the Berliner "Improved Gramophone" could have been copied, but such a flagrant violation of Johnson's patent would have surely resulted in immediate litigation. I'm not aware of Berliner or Johnson ever accusing Seaman, National, or Universal of violating Johnson's motor/governor patent; only Berliner's 1895 patent (No.534543) on a stylus driven by the record groove. I'd like to be educated on this point if such litigation documentation exists.
I cited this earlier in the discussion:
“Gramophone Litigation. – Suit to Restrain the National Corporation from the Use of the Word “Gramophone.” – The Berliner Gramophone Company, of Philadelphia, and the United States Gramophone Company, of Washington, have just filed a bill in equity in the United States Circuit Court [...].
[S]ince October, 1899, Frank Seaman has not ordered [...] any gramophones, and that
the National Gramophone Corporation since that date
has been selling to the public talking machines which infringe the Berliner Gramophone patents, manufactured by the Universal Talking Machine Company, and styled “Zonophones.” [...] The Berliner Gramophone Company complains that the National Gramophone Corporation has been using the word gramophone in its corporate title and in its advertisements, and is deceiving and misleading the public into the belief that the company is [selling gramophones] [...].” (11 June 1900
New York Tribune, New York, Vol. LX, Nr. 19,566, p. 11)