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.
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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: Textile manufacturing
WikipediaHistory, 18th-19th century mechanizationQuote, History, 18th-19th century mechanization
Until the 18th and 19th centuries, the textile industry was a household work. It became mechanised in the 18th and 19th centuries, and has continued to develop through science and technology since the twentieth century.
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