4. Compositions: ceramic
  5. Ceramic compositions
  6. Refractory

Isfried Petzenhauser

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Method for making lead pencils and colored pencils

Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Stratified or layered articles
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Zirconyl phosphate ceramics, a process for their production and

Compositions: ceramic – Ceramic compositions – Refractory
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Profile ID: LFUS-PAI-P-28633

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