U.S. federal trademark · Serial No. 75099504 · Reg. No. 2129447
medical diagnostic preparations, namely, antibody/antigen control sera for use in quality control and standardization of tests for markers, namely, HBsAg, anti-HCV, anti-HBc, anti-HIV-1, anti-HIV-2 and anti-HTLV-I for use in laboratory testing as a run control for all enzyme immunoassay blood bank testing
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