4. Hydraulic and earth engineering
  5. Earth treatment or control
  6. Chemical

Katsuhiko Kurihara

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Method of improving ground and apparatus used therefor

Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent

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Process for producing inorganic compound-containing urea resin

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent

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Urea-formaldehyde condensate-based slow release nitrogen fertili

Chemistry: fertilizers – Processes and products – Organic material-containing
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Profile ID: LFUS-PAI-P-602590

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