4. Telephonic communications
  5. Diagnostic testing, malfunction indication, or electrical...
  6. With blocking of normal usage

Roger H. S. Riordan

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Position indicator

Solid material comminution or disintegration – Apparatus – With automatic control
Patent

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Remote disconnection and short-circuiting apparatus and method

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – With blocking of normal usage
Patent

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Profile ID: LFUS-PAI-P-1917911

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