4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Optical or pre-photocell system

Ernst Spirig

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Ambient noise intruder alarm

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

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Apparatus for flux coating metal wick

Coating apparatus – With vacuum or fluid pressure chamber
Patent

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Closed space integrity

Communications: electrical – Systems – Call station
Patent

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Control system including a temperature-responsive variable optic

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Desoldering method and apparatus

Metal fusion bonding – Process of disassembling bonded surfaces – per se
Patent

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Profile ID: LFUS-PAI-P-404705

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