Allen Konigsberg long ago published a book "The Patent History of the Phonograph 1877-1922". The work has been done thru 1922 at least. As I typed this, I realized that I do not have a copy of it, so BEFORE sending this out I checked Amazon -- I immediately got the $25.00 copy, leaving the $150.00 and $500.04 copies. I don't see it in Nauck's. Unless Allen has some copies left -- there were only 1000 -- it now is an expensive book. But the field is wide open to update the material beyond 1922. Mike Biel [log in to unmask] -------- Original Message -------- Subject: Re: [ARSCLIST] Key patent numbers From: Paul Stamler <[log in to unmask]> Date: Tue, October 09, 2012 5:02 pm To: [log in to unmask] On 10/9/2012 3:40 PM, Tom Fine wrote: > This got me thinking, what are the key audio patents, has anyone ever > done a compendium or listing? If not, that would make a great ARSCJ > article! You could use as a model Kellogg's excellent summary of > sound-for-picture developments: > http://www.aes.org/aeshc/docs/smpte/movie.sound/audio_engineering_in_motion_pictures.html Several years ago, for a course I was teaching, I compiled a folder of audio patents. Not everything, but some things that were important for the class to see. I have to run off to class now, but I'll post a list tonight. Peace, Paul