Displaying results 41 of 60 - 204
Date Image Innovation City State Country
1917 Reynolds-Corliss Pumping Engine Reynolds-Corliss Pumping Engine Jacksonville FL USA
1882 Reuleaux Collection of Kinematic Mechanisms Reuleaux Collection of Kinematic Mechanisms Ithica NY USA
1890–1960 Refrigeration Research Museum Refrigeration Research Museum Brighton MI USA
1932 Radio City Music Hall Hydraulically Actuated Stage Radio City Music Hall Hydraulically Actuated Stage New York NY USA
1920 Quincy Mining Company No. 2 Mine Hoist Quincy Mining Company No. 2 Mine Hoist Hancock MI USA
1911 Pullman Sleeping Car Glengyle Pullman Sleeping Car Glengyle Dallas TX USA
1887 Pratt Institute Power Plant Pratt Institute Power Plant Brooklyn NY USA
1925 Pratt & Whitney Wasp A, R-1300 (R-1340) Pratt & Whitney R-1340 Wasp Radial Engine Windsor Locks CT USA
1799 (Image not displayed) Portsmouth-Kittery Naval Shipyard NH USA
1935 Port Washington Power Plant Port Washington Power Plant Milwaukee WI USA
1905 Pit-Cast Jib Crane Pit-Cast Jib Crane Birmingham AL USA
1934 Pioneer Zephyr Pioneer Zephyr Chicago IL USA
1876 Pioneer Oil Refinery California Star Oil Works Pioneer Oil Refinery California Star Oil Works Newhall CA USA
1902 Pin-Ticketing Machine Pin-Ticketing Machine Miamisburg OH USA
1882 Pilatusbahn - the world's steepest cog railway Pilatusbahn Alpnach Switzerland
1973 Pierce-Donachy Ventricular Assist Device Pierce-Donachy Ventricular Assist Device Hersjey PA USA
1904 Peterborough Hydraulic (Canal) Lift Lock Peterborough Hydraulic (Canal) Lift Lock Peterborough ON Canada
1943 Penn. RR GG1 Electric Locomotive #4800 Penn. RR GG1 Electric Locomotive #4800 Strasburg PA USA
1993 Pegasus 3 Engine BS 916 Pegasus 3 Engine BS 916 Bristol BC UK
1872 (Image not displayed) Paige Compositor

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