A few years later, he developed his safety hood invention, filed for a patent on it in 1912, and launched the National Safety Device Company in 1914.
He filed for a patent on it in 1912, and launched the National Safety Device Company in 1914. A few years later, he developed his safety hood invention.
A few years later, he developed his safety hood invention. He filed for a patent on it in 1912, and launched the National Safety Device Company in 1914.
A few years later, he developed his safety hood invention. He filed for a patent on it in 1912, and launched the National Safety Device Company in 1914.