4. Measuring, testing, or signalling instruments
  5. Security or signal instrument or casing
  6. Alarm or control thereof

Daniel D. Schaeffer

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Alarm system control unit

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent

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Container for an alarm transmitter adapted for insertion into a

Communications: electrical – Condition responsive indicating system – With particular coupling link
Patent

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Profile ID: LFUS-PAI-P-1203886

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