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Letter from Mr Edwards recommending Roger Wearn's window sash fastener
Letter from Mr Edwards recommending Roger Wearn's window sash fastener
Letter from Samuel Seabrook about his improved calendar
Letter from Samuel Seabrook about his improved calendar
Letter from J Pointer about his instrument for measuring distances at sea for the consideration of the Committee of Mechanics
Letter from J Pointer about his instrument for measuring distances at sea for the consideration of the Committee of Mechanics
Letter from John Moore about improved ventilator
Letter from John Moore about improved ventilator
Letter from Peter Wilson about his floating engine which can be used in raising ships
Letter from Peter Wilson about his floating engine which can be used in raising ships
Letter from Benjamin Hartley about his improvement to Sergeant John Bell's grapple
Letter from Benjamin Hartley about his improvement to Sergeant John Bell's grapple
Letter from Thomas Knight about improvements to dung cart
Letter from Thomas Knight about improvements to dung cart
Letter from Daniel Duncan about his improved wheels for carriages, engines and extinguishing fires
Letter from Daniel Duncan about his improved wheels for carriages, engines and extinguishing fires
Letter from Johann Ludwig in German about his discovery of perpetual motion
Letter from Johann Ludwig in German about his discovery of perpetual motion
Letter from Johann Gottlieb Geissler about an astronomical clock
Letter from Johann Gottlieb Geissler about an astronomical clock
Letter from George Quayle expressing his thanks for the medal awarded to him for his method of equalising water on water wheels
Letter from George Quayle expressing his thanks for the medal awarded to him for his method of equalising water on water wheels
Letter from Henry Stubbs, Carpenter about his improved winding machine
Letter from Henry Stubbs, Carpenter about his improved winding machine
Letter from Summers Phipps, plasterer about his improved roof
Letter from Summers Phipps, plasterer about his improved roof
Letter from William Tyler about his millstones
Letter from William Tyler about his millstones
Letter from W Shadwell about his movable crane
Letter from W Shadwell about his movable crane
Letter from Charles Mathews about vessels sailing against the wind
Letter from Charles Mathews about vessels sailing against the wind
Letter from John White, of the Minories about his inability to attend the Committee on ventilators
Letter from John White, of the Minories about his inability to attend the Committee on ventilators
Letter from James Simpson about his unsinkable raft
Letter from James Simpson about his unsinkable raft
Letter from Joseph Riggs on his improved bedstead
Letter from Joseph Riggs on his improved bedstead
Letter from Henry Logan about improved harpoon
Letter from Henry Logan about improved harpoon