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Offices Issuing Electronic Priority Documents That Are Digitally Signed

AT - Austrian Patent Office
BR - National Institute of Industrial Property (Brazil)
CZ - Industrial Property Office of the Czech Republic
FR - National Institute of Industrial Property (INPI) (France)
GR - Industrial Property Organization (OBI) (Greece)
IT - Italian Patent and Trademark Office
PL - Patent Office of the Republic of Poland
PT - National Institute of Industrial Property (Portugal)
SG - Intellectual Property Office of Singapore
US - United States Patent and Trademark Office (USPTO)