4. Chemistry of inorganic compounds
  5. Treating mixture to obtain metal containing compound
  6. Group iiia metal or beryllium

Robert O. Hill

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Fuse and a method of manufacturing it

Ammunition and explosives – Powder form – Having burning inhibiting means
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Process of extraction of aluminum values from coal ash

Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iiia metal or beryllium
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