| Cottage Stone, manufactured and sold by Mutual Materials Co. of Seattle, WA beford Jul. 7, 1998, 2 photos attached. |
| Windsor Stone, manufactured and sold by Anchor Block Co. of St. Paul, Minnesota, before Jul. 7, 1998, 2 photos attached. |
| NurseryStone (old), manufactured and sold by Westblock Systems, Inc. and its affiliates before Jul. 7, 1998, 2 photos attached. |
| Westblock Systems, Inc. flyer entitled NurseryStone--Simply Beautiful--Simply Installed (color flyer--two pages) published in approximately 1996-1997. |
| One page flyer, Diamond Wall System "Tech Spec" dated Sep., 1988, Anchor Block Company, St. Paul, Minnesota and Oscar Roberts Concrete Products, Brooklyn Park, Minnesota. |
| Westblock Systems, Inc. flyer entitled Jumbo Nursery Stone--Hard Working Retaining Walls (2 page flyer) published before Jul. 7, 1998. |
| Photos (Exhibit A) entitled Segmental Retaining Wall Units (Nursery Stone and Jumbo Nursery Stone), marketed by Westblock Pacific LLC before Jul., 1998. |
| Rockwood Classic Retaining Wall System (1 page flyer). no date. |
| Diamond Wall System flyer entitled The Cutting Edge (4 page flyer), Block Systems, Inc. (1989). |
| Windsor Stone (4 page flyer), Block Systems Inc. (1992). |
| Anchor Vertica.TM. & Vertical Pro.TM. (2 page flyer), Anchor Wall Systems, Inc. (1993). |
| The Westcon Report (1 page flyer). no date. |
| PISA II.RTM. flyer entitled Interlocking Retaining Wall System for Garden Landscaping, no date. |
| Dura-Hold.RTM. flyer entitled Interlocking Retaining Wall System for Heavy Duty Protection, no date. |
| Dura-Crib.RTM. flyer entitled Interlocking Retaining Wall System, no date. |
Patent Grant
D433158
