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Albert Einstein - Wikipedia


Albert Einstein was a German-born theoretical physicist. He developed the general theory of .... When the family moved to Pavia, Einstein stayed in Munich to finish his .... In 1903, Einstein's ...

First Refrigerator Patented - National Geographic Society


Dec 16, 2013 ... On August 8, 1899, the United States Patent and Trademark Office issued a patent to Albert T. Marshall of Brockton, Massachusetts, for his ...

On August 8, 1899, first refrigerator patent was issued to Albert T ...


Aug 7, 2016 ... On August 8, 1899, first refrigerator patent was issued to Albert T. Marshall. It includedan automatic motor cut-off in case it was needed, and a ...

Refrigerator History - Invention of the Refrigerator


Aug 18, 2005 ... Fascinating facts about the invention of the refrigerator by Carl von Linde in 1876. ... DID YOU KNOW? ... a patent for his refrigerator from the German Imperial Patent Office ... 1936 Albert Henne synthesizes refrigerant R-134a ... 1946 Mass production of modern refrigerators didn't get started until after World ...

Weekly Writing Prompts - Scholastic


each month. You should have a minimum of six pieces of completed writing when school ... Did you know today is World Smile Power Day? Make a list of ..... On this date in 1899, a man by the name of Albert T. Marshall received the patent ... least one paragraph, explain why you think the refrigerator was such an important.

AC and Refrigeration chronology - Ashrae

www.ashrae.org/file library/doclib/public/200651081623_347.pdf

mixtures in scientific research, as did Robert Boyle, in. 1662 ... Hoell noted the strong cooling rate when expanding air in a ... refrigerator. ... Jacob Perkins patents mechanical refrigeration machine. .... Multiple-effect compression system developed by Gardner T. ... Modern type Automatic Expansion Valve patented by Albert.

list of known african-american inventors 1845-1980 - WBCP


Mr. Baker was an African-American who worked for the U.S. Patent. Office during these early years. During this ... inventors who had submitted patents to the Patent Office. ... Burr, John Albert ... Elkins, T. Self-Setting Animal Trap. Invalid Cot. Range. Umbrella Stand .... Marshall, W. ... Prefabricated Refrigerator Construction.

Household Appliances - Business History


May 5, 1809 - Mary Kies of South Killingly, CT, received a patent for a .... days a week, generated approximately $75,000 a year in sales; 1890 - acquired National ..... August 8, 1899 - Albert T. Marshall, of Brockton, MA, received a patent for an ..... Corporation began production of energy efficient refrigerator that did not use ...

1000+ images about African-American Inventors on Pinterest ...


African American Inventor John Standard patented an improved refrigerator ... This was an improvement over the 4000-year-old bolt invented by the Chinese. .... Did you know that dry cleaning was invented in 1821 by an African American ... Henry Baker, Lewis Howard Latimer, Granvill T. Woods, George Washington ...

Black Inventions and their Inventors - Pinterest


Valerie Thomas Inventor of the Illusion Transmitter Did you ever think of what it might be. Save ... Frederick McKinley Jones Refrigerator Inventions Anytime you see a truck on the ... Shoelasting Machine Year patented: 1883 Inventor: Jan Ernst Matzeliger ..... Many referred to Granville T. Woods as the black Thomas Edison.

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What year did Albert T. Marshall patent the refrigerator? | Reference ...


Albert T. Marshall of Brockton, Mass., was issued a patent on Aug. 8, 1899 for his household refrigeration device. Several other refrigeration systems had been ...

History of Refrigeration @ Super Beefy


Sep 8, 2007 ... Isn't the refrigerator more of a convenience item? ... techniques one step further, filing a patent for “an improvement in the process for the ... The icebox, however, left much to be desired, especially when the iceman did not cometh. ... patent in the United States was granted in 1899 to one Albert T. Marshall of ...

Today in History - University of Arkansas


1942: Joseph Stalin named "Time" magazine's "Man of the Year" ..... 1879: Albert Einstein born ...... 1899: Albert T. Marshall patents household refrigerator