4. Abrasive tool making process, material, or composition
  5. Miscellaneous

Pirmin Wilhelm

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Moulded spherical ceramic body, production process and use

Compositions: ceramic – Ceramic compositions – Refractory
Reexamination Certificate

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Process for producing sintered .alpha.-Al.sub.2 O.sub.3 bodies a

Abrasive tool making process – material – or composition – Miscellaneous
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Profile ID: LFUS-PAI-P-149636

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