Category:Dynamic loudspeakers with excitation coils
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This category has the following 3 subcategories, out of 3 total.
Media in category "Dynamic loudspeakers with excitation coils"
The following 2 files are in this category, out of 2 total.
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Edward Kellogg & Chester Rice with cone speaker 1925.jpg 935 × 603; 360 KB
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Rice Kellogg loudspeaker 2.jpg 941 × 600; 289 KB