Steinway Balance Rail Bearings

Conrad Hoffsommer hoffsoco@martin.luther.edu
Fri, 23 Mar 2001 21:16:44 -0600


At 21:40 03/23/2001 -0500, you wrote:
>In a message dated 3/23/2001 8:29:47 PM Central Standard Time,
>kam544@flash.net writes:
>
><< The date listed for this patent is September 4, 1936 >>
>
>This is essentially correct, except that my understanding is that some pianos
>from 1935 got made with the "accelerated action" including the roller bearing
>balance rail.
>I have been known to be wrong, though. :)
>PR-J



The patent process is a long one (years in many cases). Many times things 
are put on the market "patent pending". This means that it has been applied 
for but not yet granted , as would be the case for those accelerated 
rollers in '35.




Conrad Hoffsommer - Luther College, Decorah, IA
Ignorance doesn't kill you, but it will make you sweat a lot.-Haitian proverb



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