This John Browning patent was another in the line of designs covering the Browning Auto-5 Shotgun. This shotgun design hit production under many labels including: Browning Auto-5, Remington Model 11, and Savage 720. It was the very first successful production semi-auto shotgun and it was designed so well that it remained in production until 1998 and is the second highest selling semi-auto shotgun of all time.
John Browning was granted US Patent 710094 on September 30th, 1902. He had applied for this patent on January 11th, 1902.
John Browning Patent 710094, The Browning Auto-5 Shotgun Drawings: