4. Communications: electrical
  5. Systems
  6. Selsyn type

Fritz H. Johansson

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Apparatus and method for device control using a two conductor po

Communications: electrical – Systems – Selsyn type
Patent

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Electronic digital combination lock

Locks – Operating mechanism – Using a powered device
Patent

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Electronic digital combination lock

Locks – Operating mechanism – Using a powered device
Patent

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Hafe-duplex two-wire DC power-line communication system

Communications: electrical – Systems – Selsyn type
Patent

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Profile ID: LFUS-PAI-P-585673

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