Lett's Improved Wagon Brake
London Sugar International
M'Ghan's Improvement in Water Closets
Maine
Mannheim
Mansfield's Apparatus for Evaporating Saccharine Juices
Maryland
Michigan
Millar's Improved Cork Cutting Machine
Miners Amongst Coal Boxes in Wilkes-Barre Mines
Minnesota
Mississippi
Missouri
Monster of Industry
Montana
Morning, An Overcast Day in Rouen
Morris and Brown's Conical Repeater
Nebraska
Nevada
New Hampshire