CS468583A1
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Method of phenolic pressing and injection materials making
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CS140683A1
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Method of pressing aminoplastics production
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CS840282A1
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Method of manufacture of modified melamineformaldehyde substance
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CS225772B1
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The equipment for the production of plastics
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CS222582B1
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Method of making the modified melaminoformaldehyde substance
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CS222447B1
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Method of making the reactoplasts
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CS224435B1
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Method of modified melaminoformaldehydic substance production
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CS224420B1
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Method of producing dicyandiamidoformaldehydic material
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CS212873B1
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Method of preparing modified melamine formaldehyde moulding mass
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