4. Batteries: thermoelectric and photoelectric
  5. Photoelectric
  6. Cells

Herbert Keppner

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Coating substrate

Stock material or miscellaneous articles – Composite – Of metal
Patent

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Photovoltaic cell and method for fabrication of said cell

Batteries: thermoelectric and photoelectric – Photoelectric – Cells
Patent

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Thermal flow sensor having recesses in a substrate

Measuring and testing – Volume or rate of flow – Thermal type
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1264155

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