4. Electricity: motive power systems
  5. Automatic and/or with time-delay means
  6. Radiant energy

Ye Zengguang

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Door sensor with self-diagnosing function

Communications: electrical – Condition responsive indicating system – Specific condition
Patent

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Object sensing system for use with automatic swing door

Movable or removable closures – Radiant energy control
Reexamination Certificate

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Object sensor system for automatic swing door

Electricity: motive power systems – Automatic and/or with time-delay means – Radiant energy
Patent

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Profile ID: LFUS-PAI-P-1289828

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