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Non-Commercial Use
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Category
Telecommunications
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Object type
telephone transmitter
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Maker
David Moseley & Sons
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Alan Archibald Campbell Swinton
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Swinton, Alan Archibald Campbell
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Place of origin
Manchester
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Manchester, Manchester urban district, Greater Manchester, England, United Kingdom
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Swinton's microphonic telephone transmitter
1884
Telephone transmitter
circa 1880
Granular carbon-type telephone transmitter
circa 1885
Telephone transmitter
circa 1880
Telephone transmitter with induction coil
circa 1885
