4. Railways: surface track
  5. Roadbed

Werner Sievers

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Column and processes for purifying solvent-containing gases

Gas separation: processes – Liquid contacting – On surface extending mass
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High-temperature resistant sulfonated aromatic polyether...

Organic compounds -- part of the class 532-570 series – Organic compounds – Fatty compounds having an acid moiety which contains the...
Reexamination Certificate

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Method for purification of formaldehyde, use thereof and...

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
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Nanoporous interpenetrating organic-inorganic networks

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
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Procedure for the chromatographic purification of insulins

Chemistry: natural resins or derivatives; peptides or proteins; – Peptides of 3 to 100 amino acid residues – Insulin; related peptides
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Profile ID: LFUS-PAI-P-100365

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