Complex sentence: A patent was filed on August 20,1896 by employees of Almon Strowger, A. E. Keith and the brothers John and Charles Erickson; patent No.597,062 was granted on January 11,1898.
Split into simpler sentences: A patent was filed on August 20,1896 by employees of Almon Strowger, namely, A. E. Keith and the brothers John and Charles Erickson. The Patent No.597,062 was granted on January 11,1898.