Patent of the Day: Hair Singer
On this day in 1890 the patent application for Hair Singer was granted. U.S. Patent No. 433,439.
Patent of the Day: Method of Making Potash (first patent granted in U.S.)
On this day in 1790 the patent application for Method of Making Potash was granted. U.S. Patent No. X000001.
Patent of the Day: Whiskey Aging Device
On this day in 1940 the patent application for Whiskey Aging Device was granted. U.S. Patent No. 2,209,474.
Patent of the Day: Dental Breath Guard
On this day in 1914 the patent application for Dental Breath Guard was granted. U.S. Patent No. 302,629.
Patent of the Day: Apparatus for Automatically Photographing Persons Moving Along a Confined Way
On this day in 1914 the patent application for Apparatus for Automatically Photographing Persons Moving Along a Confined Waywas granted. U.S. Patent No. 1,105,484.
Patent of the Day: Glass Working Machine
On this day in 1915 the patent application for Glass Working Machine was granted. U.S. Patent No. 1,147,892.
Patent of the Day: Sausage-Linking Machine
On this day in 1912 the patent application for Sausage-Linking Machine was granted. U.S. Patent No. 1,033,154.
Patent of the Day: Shoe (Salvatore Ferragamo)
On this day in 1952 the design patent application for Shoe was granted. U.S. Patent No. Des. 170,015.
Patent of the Day: Milk Vat
On this day in 1908 the patent application for Milk Vat was granted. U.S. Patent No. 893,883.
Patent of the Day: Floor Polisher
On this day in 1920 the patent application for Floor-Polisher was granted. U.S. Patent No. 1,346,918.
Patent of the Day: Vulcanizer for Rubber Tires
On this day in 1917 the patent application for Vulcanizer for Rubber Tires was granted. U.S. Patent No. 1,234,065.
Patent of the Day: Bottle-Washing Machine
On this day in 1907, the patent application for Bottle-Washing Machine was granted. U.S. Patent No. 860,353.