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The Master Rule Manufacturing Company was founded on July 21, 1908 by Albert Dahl, Gustavus A. Sigel and Henry Harknett in New York City, New York. Its industry was hardware and its headquarters remained in New York City (Middletown), New York. The company was sold to the Lufkin Rule Company in 1956. The company seems to have dissolved in 1979 (or around).

COMPANY NAMES[]

  • Dahl's Folding Stepladder Company (1908-1909)
  • Dahl Manufacturing Company (1909-1919)
  • Master Rule Manufacturing Company (1919-1979)

PRODUCTS[]

  • "Interlox Master" Slide Rule
  • "Master" Folding Rules

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