Scientific and Engineering Awards Academy Plaques

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Scientific and Engineering Awards(Academy
Plaques)

• To John Eargle, Don Keele and Mark Engebretson
  for the concept, design and engineering of the
  modern constant-directivity, direct radiator
  style motion picture loudspeaker systems.
• The work of John Eargle, Don Keele and Mark
  Engebretson has resulted in the over-20-year
  dominance of constant-directivity, direct
  radiator bass style cinema loudspeaker systems.

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