Multi-purpose underground utility conduit system
A Standard patent application filed on 06 April 2000 credited to Gustafson, Thomas F. Jr.
;
Keller, Walter D.
;
Barr, John J.
Details
Application number :
42200
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Multi-purpose underground utility conduit system
Inventor :
Gustafson, Thomas F. Jr.
;
Keller, Walter D.
;
Barr, John J.