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Creator Beckman, Arnold O. Remove constraint Creator: Beckman, Arnold O. Format Text Remove constraint Format: Text Format Mixed Material Remove constraint Format: Mixed Material Rights In Copyright - Rights-holder(s) Unlocatable or Unidentifiable Remove constraint Rights: In Copyright - Rights-holder(s) Unlocatable or Unidentifiable

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    • 1936-Jul-02

    Lee de Forest discusses testing Beckman's film-coating process with antimony. A sample of antimony paper is included.