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US341212. Bell, C. A. and Tainter, S. (1886, May 4)

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US341212. Bell, C. A. and Tainter, S. (1886, May 4)

Postby Stephen » Wed Jul 04, 2007 1:27 am

Amplified gramophone with air jet stylus.
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Stephen
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Stephen
Anyone have a spare straightjacket?
 
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