Kiyotaka Iiyama

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Catalyst bed for use in decomposition of ammonia gas

Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
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Coloring phthalide compounds

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
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Coloring phthalide compounds and recording materials using the c

Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Identified color-former
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Coloring phthalide compounds, method of producing the compounds

Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Identified color-former
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Developing apparatus for diazo copying machine

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Profile ID: LFUS-PAI-P-28648

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