299402. Baird, John Logie (1927, May 26)

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299402. Baird, John Logie (1927, May 26)

Postby Stephen » Fri Mar 14, 2008 2:30 am

Mr Baird's patent for a liquid display. It uses a bubble or float in columns of liquid.
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Stephen
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Stephen
Anyone have a spare straightjacket?
 
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