Records, 1911-1939 [microform].

Northrup, Edwin F. (Edwin Fitch), 1866-1940.

http://n2t.net/ark:/99166/w6tm7z2m (person)

Metal Manufacturers' Association of Philadelphia (Pa.)

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Leeds, Morris Evans, 1869-1952

http://n2t.net/ark:/99166/w6m909nr (person)

Leeds & Northrup Company.

http://n2t.net/ark:/99166/w67x4pdg (corporateBody)

The Leeds & Northrup Company traces its origins to Morris E. Leeds & Company, established by Morris E. Leeds in 1899 to develop and manufacture precision instruments. On June 1, 1903 the firm was renamed when Morris Leeds took a partner, Dr. Edwin F. Northrup, a theoretical physicist. The company's single most important early invention was the 1910 continuous recorder. During the First World War the company profited from the suspension of imports of German machin...