4. Telegraphy
  5. Systems
  6. Printing

John W. MacConnell

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Emergency locator system

Communications: electrical – Condition responsive indicating system – Specified indicator structure
Reexamination Certificate

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Linear power control loop

Amplifiers – With control of power supply or bias voltage – With control of input electrode or gain control electrode bias
Reexamination Certificate

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Method and system for reading intelligent utility meters

Telephonic communications – Telephone line or system combined with diverse electrical... – Remote indication over telephone line
Reexamination Certificate

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Ultra stable frequency distribution system

Telegraphy – Systems – Printing
Patent

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Profile ID: LFUS-PAI-P-1536888

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