This discussion on patents and their relative value is interesting. In "The Phonograph Book" written by Lloyd Macfarlane, Chapter XX, he states "Many an ingenious invention is not worth the paper it is written on, because it is not appreciated by those who are in a position to exploit it, but ninety nine percent of them are worthless just because they are." The author wrote this book in 1917 !!!
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Robert Wright Sent: Thursday, December 14, 2006 3:52 PM To: Antique Phonograph List Subject: Re: [Phono-L] Patent Search - tinfoil phonograph I don't get it. What's the difference? How does this one put the soundwaves into the cylinder material? This just seems silly and redundant. What am I missing? ----- Original Message ----- From: "Scott Colgrove" <[email protected]> To: <[email protected]> Sent: Thursday, December 14, 2006 4:27 PM Subject: [Phono-L] Patent Search - tinfoil phonograph Take a look at this patent. It is a 2001 patent for tinfoil phonograph and method of recording/playback. http://www.google.com/patents?vid=USPAT6185179&id=zOEGAAAAEBAJ&printsec=abst ract&zoom=4&dq=edison+tinfoil#PPA10,M1 _______________________________________________ Phono-L mailing list [email protected] Phono-L Archive http://phono-l.oldcrank.org/archive/ Support Phono-L http://www.cafepress.com/oldcrank _______________________________________________ Phono-L mailing list [email protected] Phono-L Archive http://phono-l.oldcrank.org/archive/ Support Phono-L http://www.cafepress.com/oldcrank
