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Dole ventilator being demonstrated on how the register is self-regulating depending upon temperature.

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  • Date: 1949-02
  • Physical Dimensions: B/W PRINT
  • Subject Keywords: Ventilation, 1940s
  • Publisher: TimeLife
  • Usage: For personal non-commercial use only
  • Provider: LIFE
  • Photographer: Tony Linck
  • Original ID: TimeLife_image_702102
  • Credits: LIFE
  • Copyright: © Time Inc.
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