4. Telephonic communications
  5. Supervisory or control line signaling
  6. Substation originated

Kohichi Matsumoto

Inventor

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Dialing apparatus

Telephonic communications – Supervisory or control line signaling – Substation originated
Patent

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Reflection type reduction projection optical system

Patent

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Sheet stacking device and image forming apparatus including...

Sheet feeding or delivering – Delivering – To receiver for pack of sheets
Reexamination Certificate

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Transmitter-receiver having ear-piece type acoustic transducing

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Body contact wave transfer
Patent

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Ultrafiltration apparatus

Liquid purification or separation – Plural distinct separators – Filters
Patent

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Profile ID: LFUS-PAI-P-130296

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