Calvin O Frank Consulting Engineer | EZlocal.com Business Listing#ezptCalvin O Frank Consulting Engineer<p><strong>Calvin O Frank Consulting Engineer</strong><br />310 1st St W<br />Buffalo, MT 59418<br />(406) 490-2579<br /><a href="http://ezlocal.com/mt/buffalo/engineers-consulting/092024872">ezlocal.com/MT/Buffalo/Engineers-Consulting/092024872</a></p><div></div>-109.4395,47.0705,0