4. Heat exchange
  5. With alarm, indicator, signal, register, recorder, test or...
  6. Remotely controlled inspection means

N. Rick Dawson

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Central smoke alarm and annunciator

Communications: electrical – Condition responsive indicating system – With particular system function
Patent

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Environmental control system for a multiple room structure

Heat exchange – With alarm – indicator – signal – register – recorder – test or... – Remotely controlled inspection means
Patent

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System and method for determining the location of a resident...

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

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System and method for programming a code of an emergency...

Communications: electrical – Continuously variable indicating – Combined
Reexamination Certificate

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System and method for programming a code of an emergency...

Communications: electrical – Continuously variable indicating – Combined
Reexamination Certificate

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Profile ID: LFUS-PAI-P-83206

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