Question

 What black American got a patent for a fire extinguisher in 1872?

Answer Thomas J. Martin, a black American from Dowagiac, Michigan, invented a method of constructing pipes and valves that would pump water from a reservoir directly to burning buildings, describing this ... Read More »
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Top Q&A For: What black American got a patent for a fire ext...

What black American got a patent for the rotary engine in 1892?

On July 5, 1892, African American inventor and former slave Andrew Jackson Beard was awarded a patent for the rotary engine. Beard is also known for patenting several plows and the Jenny Coupler, a... Read More »
http://www.answerbag.com/q_view/2043431

What type of fire extinguisher should be used on a gasoline fire?

Only a class B fire extinguisher should be used on a gasoline fire. Household and auto extinguishers usually have a B-C rating. Some are A-B-C rated. Never spray water on a gasoline fire.Fire Exti... Read More »
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Which black American got a patent for the railroad electric switch in 1897?

W.B. Purvis, an African-American inventor, received a patent for the electronic railway switch on August 17, 1897. Purvis is also known for receiving a patent for the fountain pen, which stored ink... Read More »
http://www.answerbag.com/q_view/2087195

What is a 40-B fire extinguisher?

The primitive design of the fire extinguisher dates back to the 1700s. The 40-B fire extinguisher, one of four classes of fire extinguishers, is regulated by codes and standards, provided by the Na... Read More »
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