Patent of the Day: Electric Shaver with Vibratory Shaving Units

On this day in 1952, the patent application for Electric Shaver with Vibratory Shaving Units was filed. U.S. Patent No. 2,675,614.


Patent of the Day: Window Air Conditioner

On this day in 1954, the patent application for Window Air Conditioner was granted. U.S. Patent No. 2,682,159.


Patent of the Day: Meat Grinder

On this day in 1928, the patent application for Meat Grinder was granted. U.S. Patent No. 1,675,067


Patent of the Day: Basket Ball

On this day in 1929, the patent application for Basket Ball was granted. U.S. Patent No. 1,718,305.


Patent of the Day: Machine for Printing and Embossing Checks

On this day in 1902, the patent application for Machine for Printing and Embossing Checks was granted. U.S. Patent No. 703,335.


Patent of the Day: Ice Rink Resurfacing Machine (Zamboni)

On this day in 1953, the patent application for Ice Rink Resurfacing Machine was granted. U.S. Patent No. 2,642,679.


Patent of the Day: Refrigerator

On this day in 1909, the patent application for Refrigerator was granted. U.S. Patent No. 925,727.


Patent of the Day: Self-Photographing Apparatus

On this day in 1934, the patent application for Self-Photographing Apparatus was granted. U.S. Patent No. 1,963,176.


Patent of the Day: Fire Hydrant

On this day in 1929, the patent application for Fire Hydrant was granted. U.S. Patent No. 1,717,392.


Patent of the Day: Sound Reproducing Machine

On this day in 1930, the patent application for Sound Reproducing Machine was granted. U.S. Patent No. 1,764,120.


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Patent of the Day: Pipe-Cleaner

On this day in 1903, the patent application for Pipe-Cleaner was granted. U.S. Patent No. 731,190.