Unidentified conference at Merrill College (?): John W. "Bill" Yerkes, pioneer of photovoltaics

Title
  • Unidentified conference at Merrill College (?): John W. "Bill" Yerkes, pioneer of photovoltaics
Creator
Description
  • Inventory note: "Negative 12A-13: John W. "Bill" Yerkes, pioneer of photovoltaics"
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