Collection and compilation of information into computer databases in the field of personal identification numbers (PINs); collection and systematization of information into personal identification number (PIN) computer databases; compiling of information into computer databases, namely, compiling personal identification numbers (PINs) into computer databases; database management, namely, personal identification number (PIN) database management; maintaining a registry of personal identification numbers (PINs); management and compilation of computerized databases, namely, management and compilation of computerized personal identification number (PIN) databases; systematization of data in computer databases, namely, systematization of data in personal identification number (PIN) computer databases
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