4. Radiant energy
  5. Invisible radiant energy responsive electric signalling
  6. Including a radiant energy responsive gas discharge device

Jean Ballon

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Curved gas-filled detector with avalanche of electrons, and stri

Electric lamp and discharge devices – Geiger-mueller type
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Parallax-free gas detector for x-rays

Radiant energy – Invisible radiant energy responsive electric signalling – Including a radiant energy responsive gas discharge device
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Profile ID: LFUS-PAI-P-671430

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