4. Organic compounds -- part of the class 532-570 series
  5. Organic compounds
  6. Four or more ring nitrogens in the bicyclo ring system

Patricia Dwyer-Hallquist

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Fluoran derivatives and their use in recording materials

Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Method of use – kit – or combined with marking instrument or...
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Fluoran derivatives and their use in recording materials

Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent

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Profile ID: LFUS-PAI-P-98326

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