4. Gas separation: apparatus
  5. Magnetic separating means

Donald J. Trevoy

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Organic semiconductor compositions

Compositions – Electrically conductive or emissive compositions
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Organic semiconductor element

Stock material or miscellaneous articles – Composite
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Organic semiconductors

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
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Organic semiconductors used in photoconductor element

Gas separation: apparatus – Magnetic separating means
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Silver halide element containing an organic semiconductor

Gas separation: apparatus – Electric field separation apparatus – Electrode retaining or supporting means
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