Definitions

Defender Photo Supply

Defender Photo Supply

Defender Photo Supply was an early leader in manufacturing of black & white sheet film, plates, printing paper and instructional books. Based in Rochester, New York from the turn of the 20th Century in to the 1940s. Purchased by DuPont in the 1940s.

Achievements

  • Defendol - an affordable developing agent created to side step developers controlled by German patents
  • Chromatone Process - Introduced in 1935, is a method of using a collodion stripping paper manufactured by the Defender Company and tricolor toners developed by Francis H. Snyder and Henry W. Rimbach of New York City.
  • VC Paper

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