John D. Cowan & Associates, Inc.
An Ohio corporation founded in 1964

Sketch of Jack
 

Poly-Void Systems Photo Gallery

Profits going up in steam,
 but the tarps are cheap.

 

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Click on Thumbnail pics for a close-up.

P001.jpg (72487 bytes)
Double "T's"		 P002.jpg (80561 bytes)
Kiln Doors, Inside		 P016.jpg (88057 bytes)
Median Barriers		 P015.jpg (94341 bytes)
Median Barriers
P003.jpg (94824 bytes)
Median Barriers2		 P005.jpg (88096 bytes)
Rollups-Inside		 P007.jpg (65820 bytes)
Drop Kilns		 P008.jpg (58347 bytes)
Drop Kilns
P013.jpg (78494 bytes)
Bridge Beams		 P011.jpg (79558 bytes)
Bridge Beams		 P012.jpg (85928 bytes)
Bridge Beams
Bridge Beams
P020.jpg (73154 bytes)
Box Culvert Hoods		 P017.jpg (77133 bytes)
Hoods		 P018.jpg (85902 bytes)
Hoods		 P019.jpg (80588 bytes)
Hoods
P021.jpg (92262 bytes)
Gang Roller, Inside		 P022.jpg (90615 bytes)
Frame-Mounted Panels		 P023.jpg (77136 bytes)
Frame-Mounted Panels		 P026.jpg (104202 bytes)
Piling
P025.jpg (87774 bytes)
Pipe Socks		 P024.jpg (91933 bytes)
Pipe Socks		 P027.jpg (83637 bytes)
Segements		 P028.jpg (84112 bytes)
Segements
MVC-028S.jpg (101861 bytes)
New Tile Grout
Sun/Heat Protection		 P30.jpg (57483 bytes)
Concrete Block
(No Steam)
 		Septic_tank_hoods.JPG (571025 bytes)
Septic Tank Hoods		 Septic_tank_hoods_1.JPG (596005 bytes)
Septic Tank Hoods
 

Tarp_cart_1.JPG (50226 bytes)
Tarp Cart

 

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Main Company Products Newsletters Contacts

P.O. Box 21554
Columbus, Ohio 43221
Phone:  (614) 486-0707
Fax:  (614) 486-0739
 

 © 2000-2008 by John D. Cowan & Associates, Inc.  All rights reserved.
 No use or reproduction without permission.