"Hill's Patent" Stanley Bull-Dog Revolver: Blatant Patent Theft in 1878
The Hill's Patent Stanley Bull-Dog Revolver, likely Belgian-made and imported to the UK, showcases a simultaneous ejection system. Despite bearing 'Hills Patent' markings, research indicates W.J. Hill's 1878 patent covered lockwork, not the ejector. The actual patent for this system belongs to Belgian inventor Dupré-Joassart, patented in 1873, suggesting Hill misrepresented patents to collect royalties on stolen designs.











