4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Photocell controlled circuit

Masahiro Shikai

Inventor

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Annular photodiode for use in an optical rotary encoder

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent

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Elevator rope slip detector and elevator system

Elevator – industrial lift truck – or stationary lift for vehicle – With monitoring – signalling – and indicating means
Reexamination Certificate

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Elevator rope slip detector and elevator system

Elevator – industrial lift truck – or stationary lift for vehicle – With monitoring – signalling – and indicating means
Reexamination Certificate

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Elevator system with safety installation

Elevator – industrial lift truck – or stationary lift for vehicle – With barrier for regulating access to load support – Includes motor or motor driven linkage for shifting barrier
Reexamination Certificate

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Fingerprint image pickup device

Image analysis – Applications – Personnel identification
Reexamination Certificate

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Profile ID: LFUS-PAI-P-490676

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