4. Office supplies; artists and teachers materials
  5. Teaching material
  6. Demonstrator or exhibitor

Charles R. Putman

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Children's spelling toy

Office supplies; artists and teachers materials – Teaching material – Demonstrator or exhibitor
Patent

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Process for the incineration of chlorinated organic materials

Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Halogenous component
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Profile ID: LFUS-PAI-P-503542

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