I take it the American Columbia "Double Disc" records were not the first ones?
From: Martin Fisher <[log in to unmask]>
To: [log in to unmask]
Sent: Tue, November 16, 2010 2:21:45 PM
Subject: Re: [ARSCLIST] origins of 2-sided discs
Well WHAR'S it gonna be published son?? ;-)
----- Original Message -----
From: <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, November 16, 2010 2:41 PM
Subject: [ARSCLIST] origins of 2-sided discs
> In about two weeks there will be an interesting article published on
> the origins and early history of, two-sided records.
> One of the few remaining puzzles is how Colin McKenzie got a Canadian
> patent for the concept in Dec 1904, when Ademor Petit already had it, in
> Canada: 75705 (1901-1902).
> (with apologies for possible cross-posting.)