"Davidson Streets." City of Davidson. Retrieved on 18 January 2011.
ingersollrand.com
company.ingersollrand.com
"Contact UsArchived 2011年1月2日, at the Wayback Machine.." Ingersoll Rand. Retrieved on 18 January 2011. "North America Headquarters 800-E Beaty Street Davidson, NC 28036 USA"
"Contact UsArchived 2011年1月2日, at the Wayback Machine.." Ingersoll Rand. Retrieved on 18 January 2011. "North America Headquarters 800-E Beaty Street Davidson, NC 28036 USA"