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Samuel Lewthwaite
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Individual
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Individual
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Holding Or Fastening Of Disk On Rotational Shaft
(AREA)
Abstract
5689. Lewthwaite, S. March 9. Trumpets.-A phonograph horn 1 is connected to the sound-box 2 by a straight tube 3 and bends 4, 5 without any flexible joints. The horn and connecting-tubes may be made in one piece with the sound-box, or the horn may unscrew at A for facility in packing.
GB190605689D1906-03-091906-03-09Improvements in, and relating to, the Horns of Phonographic Disc Machines.
ExpiredGB190605689A
(en)