4. Movable or removable closures
  5. Time controlled

Robert Sorber

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Automatic operating system and method for swinging doors

Movable or removable closures – Time controlled
Patent

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Automatic sliding door operator

Movable or removable closures – Condition responsive control
Patent

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Radiation dose rate measuring device

Radiant energy – Invisible radiant energy responsive electric signalling – Including a radiant energy responsive gas discharge device
Patent

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Profile ID: LFUS-PAI-P-1145158

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