1
Richard E Swan: Detachable mount for a telescopic firearm sight. Barlow Josephs & Holmes, April 17, 2007: US07204052 (26 worldwide citation)

A positively aligning, quick mount assembly for interfacing an auxiliary sighting device such as an optical scope with a firearm is disclosed. The positive-aligning quick mount device includes a sight receiver that is attached to a firearm utilizing a firearm interface and includes a mounting ring t ...


2
Richard E Swan: Detachable mount for a telescopic firearm sight. Barlow Josephs & Holmes, November 3, 2005: US20050241212-A1

A positively aligning, quick mount assembly for interfacing an auxiliary sighting device such as an optical scope with a firearm is disclosed. The positive-aligning quick mount device includes a sight receiver that is attached to a firearm utilizing a firearm interface and includes a mounting ring t ...