Frank Pearne lost interest in the project after a year and left to get involved in teaching. Krum was prepared to continue Pearne’s work, and in August, 1903 a patent was filed for a 'typebar page printer'.[1] In 1904, Krum filed a patent for a 'type wheel printing telegraph machine'[2] which was issued in August, 1907. In 1906 Charles Krum's son, Howard Krum, joined his father in this work.