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Luis Zambrano. Gregorio Y. Zara. Vilius Židonis. Categories: Inventors by century. 20th-century people by occupation. 20th-century inventions. Hidden category: Automatic category TOC generates no TOC.
20th-century inventors (31 C, 30 P) P. 20th-century percussion instruments (21 P) Pages in category "20th-century inventions" The following 126 pages are in ...
1886: Charles Martin Hall and independently Paul Héroult invent the Hall–Héroult process for economically producing aluminum in 1886. 1886: Karl Benz invents the first petrol or gasoline powered auto-mobile (car). [440] 1887: Carl Josef Bayer invents the Bayer process for the production of alumina.
American inventors, persons who created or discovered a new method, form, ... 20th-century American inventors (1,331 P) 21st-century American inventors (321 P)
Pages in category "20th-century American inventors" The following 200 pages are in this category, out of approximately 1,313 total. This list may not reflect recent changes .
1855–1905. Inventor. Folding "cabinet-bed", forerunner of the Murphy bed; first African-American woman to receive a patent in the United States. [81][82][83] Grant, George F. 1846–1910. Dentist, professor. The first African-American professor at Harvard, Boston dentist, and inventor of a wooden golf tee.
Throughout the 20th century, Edison was the world's most prolific inventor. At the beginning of the century, he held 736 U.S. patents. His final count was 1,093 U.S. patents, including 1084 utility patents (patents for inventions) and 9 artistic design patents. It was not until June 17, 2003 that he was passed by Japanese inventor Shunpei ...
Timeline of United States inventions (1890–1945) Robert H. Goddard (1882–1945), the American physicist and inventor who built and launched the world's first liquid-propellant rocket on March 16, 1926. [1] Goddard held 214 patents for his inventions and pioneering innovations in liquid-propelled, guided, and multi-stage rockets.