U.S. federal trademark · Serial No. 73187328 · Reg. No. 1
Diagnostic Agents in the Form of Colormetric Indicators in Liquid Form for Detecting the Presence of Formaldehyde or Formol in Water for Medical Laboratory Use
Colormetric Indicators in Liquid Form for Detecting the Presence of Formaldehyde or Formol in Water for Scientific Laboratory Use
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