Menlo Park: The World's First R&D Lab

Thomas Edison's Menlo Park
U.S. Dept. of the Interior / National Park Service / Thomas Edison National Historical Park

The staff at Menlo Park included machinists, chemists and draftsmen, the total number of workers rising and falling according to the inventor's needs. Some workers passed through briefly, while others stayed with Edison for years and even assumed managerial positions in his manufacturing companies.

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