Patent of the Day: Selective Radio Receiving System
On this day in 1937, the patent for Selective Radio Receiving System was granted. U.S. Patent No. 2,094,625.
Patent of the Day: System of Electrical Distribution
On this day in 1888, the patent for System of Electrical Distribution was granted. U.S. Patent No. 390,413.
Patent of the Day: Tuning Pin for Pianofortes
On this day in 1895, the patent for Tuning Pin for Pianofortes was granted. U.S. Patent No. 547,036.
Patent of the Day: Blooping Device for Sound Reproducers
On this day in 1941, the patent for Blooping Device for Sound Reproducers was granted. U.S. Patent No. 2,257,561.
Patent of the Day: Bicycle Skirt
On this day in 1896, the patent for Bicycle Skirt was granted. U.S. Patent No. 568,339.
Patent of the Day: Bicycle Hanger
On this day in 1897, the patent for Bicycle Hanger was granted. U.S. Patent No. 590,773.
Patent of the Day: Apparatus for Molding Candles
On this day in 1860, the patent for Apparatus for Molding Candles was granted. U.S. Patent No. 30,180.
Patent of the Day: Cork Extractor
On this day in 1895, the patent for Cork Extractor was granted. U.S. Patent No. 546,747.
Patent of the Day: Golf Ball Washing Machine
On this day in 1955, the patent for Golf Ball Washing Machine was filed. U.S. Patent No. 2,814,813.
Patent of the Day: Culvert
On this day in 1903, the patent for Culvert was granted. U.S. Patent No. 739,686.
Patent of the Day: Garment Supporting Device
On this day in 1906, the patent for Garment Supporting Device was granted. U.S. Patent No. 831,390.
Patent of the Day: Suction Carpet Sweeper
On this day in 1913, the patent for Suction Carpet Sweeper was granted. U.S. Patent No. 1,073,301.