"This black t-shirt, which says “Silence = Death” with a pink triangle, symbolizes the struggle against AIDS.
History Explorer Results (2)
Related Books (0)
Between the years 1790 and 1880 the U.S. Patent Office required both documentation and a three-dimensional working model to demonstrate each new invention submitted for a patent. The models helped to explain proposed innovations and compare them against similar inventions. In this online exhibiti
Artifacts, Primary Sources
Remington put its writing machines on the market in 1874 at a price of $125. The new Type Writer owed some of its identity to the sewing machines that Remington had recently added to its product line. The writing machine came mounted on a sewing machine stand, with a treadle to operate the carria