4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Photocell controls its own optical systems

Donald S. Schaper

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Light beam intensity controlling apparatus

Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent

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Method of forming a thin sheet of an amalgam

Alloys or metallic compositions – Mercury base
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Profile ID: LFUS-PAI-P-433706

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