Coherer in original metal box (MMS Patent 10445)

Coherer in original metal box (MMS Patent 10445)
Science Museum Group
© The Board of Trustees of the Science Musuem

Details

Category:: Telecommunications

Object Number:: 2004-145

type:: coherer

credit:: BT Group plc

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Coherer in original metal box (MMS Patent 10445)

Details

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