4. Organic compounds -- part of the class 532-570 series
  5. Organic compounds
  6. Nitrogen attached directly or indirectly to the purine ring...

William J. Becker

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Adhesive composition for making form sets from carbonless copy p

Chemistry of carbon compounds – Miscellaneous organic carbon compounds
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Dental bleaching instrument

Dentistry – Apparatus – Having heater or electrode
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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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Illuminator for dental handpiece

Dentistry – Apparatus – Having means to emit radiation or facilitate viewing of the...
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Profile ID: LFUS-PAI-P-23357

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