Mark P Duffy
Mark P Duffy's Illinois Professional Engineer stamp
Watermarked specimen
This downloadable Illinois Professional Engineer stamp specimen was generated for Mark P Duffy from the public license details in this directory listing, including license number 061014691. The preview is watermarked and does not prove that Mark P Duffy approved or sealed a document.
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Mark P Duffy holds a Professional Engineer license in Illinois. The credential is registered under license number 061014691 and is currently active. It has been on record since 1978. Licensure is issued and verifiable through the Illinois Department of Financial and Professional Regulation - Design Professionals.