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Thomas Edison's Menlo Park
Accounting Office & Research Library

Thomas Edison's Menlo Park Accounting Office & Research Library Thomas Edison employed Samuel Mott who made detailed drawings needed for patent applications at a drafting table in the Accounting Office & Research Library. Edison used the patent system in the United States and Europe to prevent competition. Many of Edison’s 1,093 patents related to equipment or techniques used in manufacturing his inventions. Edison profited both by granting manufacturing rights to other companies and by directly selling products under his own name.

Reporters arrived at the Menlo Park seeking interviews with Thomas Edison, "The Wizard of Menlo Park". Edison used the press to his own advantage to promote his public image, to attract financial support by publicizing his success, to exaggerate his progress to scare off competitors, to learn what other inventors were doing, and to inform the scientific community of his own inventions. The Research Library contained scientific journals and newspapers which were received at Menlo Park.

Thomas Edison’s Menlo Park Laboratory operation was a complex and expensive undertaking. In the Accounting Office, bookkeepers William Carman and Ernest Berggren kept track of Edison’s finances. Edison constantly needed funds to pay workers, satisfy suppliers, and keep the interest of investors.

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