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Individual
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Individual
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Priority to JP7842090UpriorityCriticalpatent/JPH0712030Y2/ja
Publication of JPH0437377UpublicationCriticalpatent/JPH0437377U/ja
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Publication of JPH0712030Y2publicationCriticalpatent/JPH0712030Y2/ja
Surrogato di pietre semi-preziose eprocedimento per la produzione di pietre ornamentali prodotte con una massa dura simile a pietra tale massa dura. semi-preziosa, con possibilita' di taglio, sfaldatura, spianatura e lucidatura; il suo impiego come