FIG. 1 is a perspective view of a precast concrete bridge unit and showing my new design;
FIG. 2 is an end view thereof, the opposite end view being the same; and,
FIG. 3 is a side view thereof, the opposite side view being the same.
FIG. 1 is a perspective view of a precast concrete bridge unit and showing my new design;
FIG. 2 is an end view thereof, the opposite end view being the same; and,
FIG. 3 is a side view thereof, the opposite side view being the same.
Number | Name | Date | Kind |
---|---|---|---|
D47171 | Smith | Mar 1915 | S |
2161176 | Leisner | Jun 1939 | A |
4564313 | Niswander et al. | Jan 1986 | A |
4587684 | Miller | May 1986 | A |
4993872 | Lockwood | Feb 1991 | A |
D356163 | Ryan | Mar 1995 | S |
5590433 | Fricke | Jan 1997 | A |
D406902 | Lockwood | Mar 1999 | S |