4. Communications: electrical
  5. Digital comparator systems

Robert W. Freund

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Control signal apparatus for CATV system

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
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Method and apparatus for recording a signature

Communications: electrical – Digital comparator systems
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Method and apparatus for recording a signature

Communications: electrical – Digital comparator systems
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Personal identification apparatus

Communications: electrical – Digital comparator systems
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Profile ID: LFUS-PAI-P-720106

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