License Directory

Tianchen Ruan

Active

California license 40048

License

Licensed by
California Board for Professional Engineers, Land Surveyors, and Geologists
License number
40048
Status
Active
First issued
April 10, 2020
Expires
September 30, 2028
License holder
Tianchen Ruan
Entity type
Individual

Classifications

Contact

54 Blazewood
Foothill Ranch, CA 92610
Orange County