John Francis O'brien
John Francis O'brien's California Geotechnical Engineer stamp
Watermarked specimen
This downloadable California Geotechnical Engineer stamp specimen was generated for John Francis O'brien from the public license details in this directory listing, including license number 651. The preview is watermarked and does not prove that John Francis O'brien approved or sealed a document.
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John Francis O'brien is a Geotechnical Engineer licensed to practice in California. The credential is registered under license number 651 and is currently active. It has been on record since 1987. Licensure is issued and verifiable through the California Board for Professional Engineers, Land Surveyors, and Geologists.