4. Chemical apparatus and process disinfecting, deodorizing, preser
  5. Physical type apparatus
  6. Crystallizer

Ricoh Co. Ltd.

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(7-Nitro-2-aza-9-fluorenylidene) malononitrile

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
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.alpha.-(9-Anthryl)-.beta.-(3-carbazolyl)ethylene derivatives

Harness for working animal
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1,3,4-Oxadiazole derivatives and use thereof

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
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2,6-Disazo anthraquinone compounds

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
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3,6-Disazo-9-ethyl carbazole compounds

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
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