4. Communications: electrical
  5. Condition responsive indicating system
  6. Specific condition

Percy F. Shadwell, Jr.

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Method and system for remotely monitoring garage door position

Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate

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Method and system for remotely monitoring garage door position

Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate

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Synthetic barcode system and method

Registers – Records – Fluorescent – phosphorescent – radiation emitting
Reexamination Certificate

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