Design of a universal portable electric drill [1920]. Este artículo no está disponible.Design of a universal portable electric drill [1920]

Language: English. Approximately 170 pages. English: Print-on-demand reprint. Original edition : 1920. Text in English. This thesis, submitted by Edwin Lewis Connell for the degree of Electrical Engineer at the University of Illinois in 1920, presents a detailed design for a universal portable electric drill. The document includes technical specifications, engineering principles, and innovative features that were relevant to the field of electrical engineering at the time. Additionally, the work incorporates [11] leaves of U.S. patents, providing practical applications and legal considerations for the design. Book images are non-contractual. This item is printed on demand and ships from our printing partners' facility nearest the destination. These facilities are located mainly in the United States, the United Kingdom and Canada.