"By virtue of a patent granted by King Charles II. for a new invention of lamps with convex glasses"@en . "July 1, 1691. By virtue of a patent granted by King Charles II for a new invention of lamps with convex glasses"@en . "July 1, 1691. By virtue of a patent granted by King Charles II for a new invention of lamps with convex glasses" . . . . . "By virtue of a patent granted by King Charles II for a new invention of lamps with convex glasses"@en . "By virtue of a patent granted by King Charles II for a new invention of lamps with convex glasses" . "July 1. 1691. By virtue of a patent granted by King Charles II. for a new invention of lamps with convex glasses"@en . . . . . . "Early works"@en . . "Early works" . . "[July 1, 1691] By virtue of a patent granted by King Charles II for a new invention of lamps with convex glasses"@en . . . . . . . . . . . .