Pennsylvania USGenWeb Archives

 

The City of DuBois

by

William C. Pentz

 

DuBois

Press of Gray Printing Co.

1932

 

 

Digitized and transcribed for the Clearfield County PA USGenWeb by

Ellis Michaels

 

Copyright

This page was last updated on 04 Jan 2014

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The City of DuBois

Chapter 17

Page 077

 

 

Page 77 JOHN DuBois

[image]
Diagram for building bridge piers. Copied from the patent of John DuBois, United States Patent Office.
 

 

  

 

 

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