Humboldt Scientific, Inc.
2525 Atlantic Ave.
Raleigh, NC 27604 USA
Office Hours: Monday to Friday, 8:00am to 5:00pm EST.
Humboldt Mfg. Co.
875 Tollgate Road
Elgin, IL 60123
Office Hours: Monday to Friday, 7:00am to 5:30pm CST.
phone:
1.800.544.7220
1.708.468.6300