Coherer in original metal box (MMS Patent 10445)

Coherer in original metal box (MMS Patent 10445)

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

Coherer in original metal box (MMS Patent 10445)

Details

Category:
Telecommunications
Object Number:
2004-145
type:
coherer
credit:
BT Group plc