1. Egerton Ch 7806 Reference (shelfmark): Egerton Ch 7806 Title: Scope & Content: Inventions: Signet Warrants for patents for inventions: 1717-1725. Henry Browne, inventor: Signet Warrant for inventor's patent to: 1721. Collection Area: Western Manuscripts Languages: English Date Range: 1721 Extent: 1 item