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Title: 'Inductor dynamic' moving iron loudspeaker (Pat [Go to resource]
Description: 'Inductor dynamic' moving iron loudspeaker (Pat. No. 238,310 of 1924-5) License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1933-139 Go to resource More Like this...
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