[D0231AAT], Letter from Thomas Alva Edison to Francis Bacon Crocker, July 1902


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[D0231AAT], Letter from Thomas Alva Edison to Francis Bacon Crocker, July 1902





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Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University


Proposed Letter, No. 2).
Professor Francis B. Crocker,
Barnstable, Mass.
My Dear Crocker:
Will you kindly look at my patent of December 29th, 1891, No. 465,971, and compare it with the Marconi patent, and tell me what bearing, in your opinion, my invention and claims have upon the claims of Mr. Marconi's patent and whether, in your opinion, my claims can be construed to apply to the Marconi system, as shown in those claims of his patent which may reasonably be valid.
I understand that in some quarters there exists an impression that in some necromatic importance attached to what are now called Hertzian waves. I would especially like your views as to whether the claims in the Marconi patent do in fact concern a principle radically different from and opposed to the principle that is the subject of the claims in my patent; or, whether, on the other hand, electric waves are electric waves whether they be called inductive or Hertzian.
Yours truly,
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