In field names the narrower specialty an invention sits within inside its wider field. Wikipedia notes a telephone "converts sound... into electronic signals that are transmitted via cables and other communication channels," a specialty of electrical signal transmission inside telecommunications generally. This dimension groups inventions that share the same narrow technical specialty.
Facts
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Main Engineering Branch Field Founding Era In Field
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Sources
1. Wikipedia: Engineering
WikipediaIntroduction, traditional disciplinesQuote, Introduction, traditional disciplines
The traditional disciplines of engineering are civil, mechanical, electrical, and chemical.
2. Wikipedia: Materials science
WikipediaIntroduction, mid-20th-century recognitionQuote, Introduction, mid-20th-century recognition
Beginning in the 1940s, materials science began to be more widely recognized as a specific and distinct field.
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