On this day in 1910, the patent for Foot Warming Attachment for Electrothermal Garments was filed. U.S. Patent No. 990,206.
Patent of the Day: Foot Warming Attachment for Electrothermal Garments
October 12, 2015
|In Patent History
On this day in 1910, the patent for Foot Warming Attachment for Electrothermal Garments was filed. U.S. Patent No. 990,206.