4. Gas separation: apparatus
  5. Electric field separation apparatus
  6. Including gas flow distribution means

Donald P. Wrathall

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Acyl hydrazino thiourea derivatives as photographic nucleating a

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
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Control of methionine content in photographic grade gelatin

Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Scleroproteins – e.g. – fibroin – elastin – silk – etc.
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Photographic compositions and elements including internal latent

Gas separation: apparatus – Electric field separation apparatus – Including gas flow distribution means
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