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Patent
Synthesis of camptothecin and analogs thereof
January 01, 1991
Patent
Method and apparatus for automatic cuing
November 20, 1990
Patent
11 .beta.-substituted progesterone analogs
September 04, 1990
Patent
Processing additives for blended cements
July 24, 1990
Patent
Centrifugal filter for separating aerosol particles from a gas stream
May 08, 1990
Patent
Novel process for the production of ceramic flakes
April 24, 1990
Patent
Impedance cardiometer
March 06, 1990
Patent
Synthesis of camptothecin and analogs thereof
January 16, 1990