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.
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.
Patent of the Day: Mouse Trap
On this day in 1943, the patent application for Mouse Trap was granted. U.S. Patent No. 2,321,617.
Patent of the Day: Lung Protector
On this day in 1849, the patent application for Lung Protector was granted. U.S. Patent No. 6,529
Patent of the Day: Hair Spray Shield
On this day in 1964, the patent application for Hair Spray Shield was filed. U.S. Patent No. 3,317,921
Patent of the Day: Dog Whistle
On this day in 1941, the patent application for Dog Whistle was granted. U.S. Patent No. 2,245,484
Patent of the Day: Pretzel Making Machine
On this day in 1915, the patent application for Pretzel Making Machine was granted. U.S. Patent No. 1,142,533
Patent of the Day: License Plate Holder
On this day in 1928, the patent application for License Plate Holder was granted. U.S. Patent No. 1,672,333.
Patent of the Day: Vending Machine
On this day in 1925, the patent application for Vending Machine was filed. U.S. Patent No. 1,689,039.
Patent of the Day: Baby Incubator and the Like
On this day in 1941, the patent application for Baby Incubator and the Like was granted. U.S. Patent No. 2,243,999.