4. Electricity: motive power systems
  5. Motor-reversing

Robert Roy Keller, Jr.

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Movable light for use with a movable barrier operator

Electricity: motive power systems – Motor-reversing
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Wireless transmit-only apparatus and method

Telecommunications – Transmitter
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Wireless transmit-only apparatus and method

Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Reexamination Certificate

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Wireless transmit-only apparatus and method

Telecommunications – Transmitter – Mobile or portable
Reexamination Certificate

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