4. Radiant energy
  5. Invisible radiant energy responsive electric signalling
  6. Ultraviolet light responsive means

Gilbert Norman Ravich

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Apparatus and method using photoelectric effect for testing...

Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Reexamination Certificate

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Apparatus and method using photoelectric effect for testing...

Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Reexamination Certificate

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Method & apparatus for detecting fracture filled diamonds

Radiant energy – Invisible radiant energy responsive electric signalling – Ultraviolet light responsive means
Patent

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Refocusing wavelengths to a common focal plane for...

Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1578446

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