4. Registers
  5. Systems controlled by data bearing records
  6. Credit or identification card systems

Hans-Diedrich Kreft

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Apparatus for bidirectional data transmission

Communications: electrical – Continuously variable indicating – With meter reading
Patent

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Apparatus for contactless energy and data transmission for singl

Communications: electrical – Continuously variable indicating – With particular transmitter
Patent

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Card with inhibit given remote interrogation

Communications: electrical – Continuously variable indicating – With meter reading
Patent

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Chip card

Registers – Records – Conductive
Patent

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Chip card capable of both contact and contactless operation incl

Registers – Records – Conductive
Patent

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Profile ID: LFUS-PAI-P-328738

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