4. Communications: directive radio wave systems and devices (e.g.,
  5. Presence detection only
  6. By motion detection

Shmuel Hershkovitz

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Data entry keypad assembly

Coded data generation or conversion – Bodily actuated code generator – Including keyboard or keypad
Patent

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Doppler shift motion detector with variable power

Communications: directive radio wave systems and devices (e.g. – Presence detection only – By motion detection
Patent

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Telephone line coupler

Telephonic communications – Supervisory or control line signaling – Using line or loop condition detection
Reissue Patent

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Profile ID: LFUS-PAI-P-1313512

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