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Well WHAR'S it gonna be published son??  ;-)

Martin

----- 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


>
> Hi,
>
>    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).
>
> Thanks.
>
> Allen
> (with apologies for possible cross-posting.)
>
>