PTO means Patent and Trademark Office U.S. Department of Commerce in FDA
Similar to PTO
ACS - Automated Commercial SystemACS (CBER) - Analytical Chemistry Staff CBER
ACS (CDER) - Advisors and Consultants Staff CDER
ACSM - American College of Sports Medicine
ACT - AIDS Clinical Trials
ACT - Applied Clinical Trials
ACTB (NCTR) - Analytical Chemical Techniques Branch NCTR
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