4. Movable or removable closures
  5. Removable closure

John G. Semmes

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Combination electrical light, smoke and/or heat detector

Communications: electrical – Condition responsive indicating system – Specified housing
Patent

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Convertible ladder stabilizer

Fire escape – ladder – or scaffold – Ladder – With spacer means
Patent

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Safety gate for juveniles with security brackets

Movable or removable closures – Removable closure
Patent

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Signal light unit having heat dissipating function

Illumination – Plural light sources – With modifier
Patent

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Profile ID: LFUS-PAI-P-817296

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