Before revision: The devices before the Bullworker Arthur Aubriot Pons Pons' physical exercise device The original device was patented in 1912 by an American Citizen from Brooklyn, Arthur A. Pons.Patent : US1023756A The device looked quite alike the first bullworker to come (without strings).
After revision: The devices before the Bullworker Arthur Aubriot Pons Pons' physical exercise device The original device was patented in 1912 by an American Citizen from Brooklyn, Arthur A. Pons.Patent : US1023756A The device looked quite like the first bullworker to come (without strings).