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The design for a portable railroad crossing signal, as shown and described. |
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FIG. 1 is a front view of a portable railroad crossing signal showing my new design;
FIG. 2 is a side view thereof, with the opposite side being a mirror image; and,
FIG. 3 is a rear view thereof.
Chinn, Bruce E., Viebrock, Garry W.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Aug 16 1993 | Garry W., Viebrock | (assignment on the face of the patent) | / | |||
| Nov 07 1994 | CHINN, BRUCE E | VIEBROCK, GARRY W | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007267 | /0951 |
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