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  • [发明专利]US19740455404 _ HITACHI, LTD. 1974年03月27日
    A device for heating or cooling an agitator tank serving as a fermentor comprising a plurality of pipe blocks of the vertical trombone type each block consisting of a plurality of straight vertical pipes disposed in staggered relationship and connecte...
  • [发明专利]US19740444018 _ DENKI KAGUKU KOGYO KABUSHIKI KAISHA 1974年02月20日
    A water-insoluble enzymatically active composition is produced by causing a biologically active enzyme or enzymatically active microorganic cells to be adsorbed on an anion-exchange-resin having a quaternary pyridine ring in the molecular unit thereof...
  • [发明专利]US19740516792 _ SEAL INCORPORATED 1974年10月21日
    A vacuum press adapted for laminating transparent protective film to photographs and the like and for dry-mounting the same to suitable substrates or backing materials. The press comprises a base characterized by a flexible air-impermeable wall which ...
  • [发明专利]US19740518229 _ APPLIED BIOSCIENCE 1974年10月29日
    An apparatus for separating particles from a fluid comprising a housing, means for flowing a fluid through said housing, a plurality of parallel perforated plates supported in said housing spaced from one another in the direction of fluid flow, the pl...
  • [发明专利]US19740518714 _ JOH. A. BENCKISER GMBH 1974年10月29日
    Alkali metal or ammonium citrates are produced from solutions of citric acid obtained by chemical reaction or by fermentation by extraction by means of a specific water-immiscible mixture of aliphatic amines and organic solvents and re-extracting the ...
  • [发明专利]US19740523559 _ CORNELL RESEARCH FOUNDATION, INC. 1974年11月14日
    Disclosed is a new heteropolysaccharide polymer and a method for producing this polymer by a fermentation process comprising culturing a heteropolysaccharide-producing strain of a micro-organism of the genus Methylomonas on an aqueous culture medium c...
  • [发明专利]US19740511524 _ SUMITOMO CHEMICAL COMPANY, LIMITED 1974年10月03日
    A cosmetic can be improved and enhanced in its effect when incorporated with pullulan, which is a linear high polymer having repetition units, bonded through alpha -1,6-linkages, of maltotriose, a trimer of glucose, and is represented by the formula,...
  • [发明专利]US19740506464 _ THE UNIVERSITY OF UTAH 1974年09月16日
    A protein-immobilizing hydrophobic polymeric membrane comprising an organic, hydrophobic polymeric substrate with a specific protein reactive group pendant therefrom in preselected concentration is disclosed. The protein reactive groups is a free grou...
  • 9.
    [发明专利]JP19740030544 _ 1974年03月19日
  • [发明专利]US19740499585 _ MULLER, HANS 1974年08月22日
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