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The ornamental design for a barricade warning light testing device, as shown. |
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FIG. 1 is a front elevational view of a barricade warning light testing device, showing my new design.
FIG. 2 is a left side elevational view thereof.
FIG. 3 is a right side elevational view thereof.
FIG. 4 is a rear elevational view thereof.
FIG. 5 is a top plan view thereof; and
FIG. 6 is a bottom plan view thereof.
| Patent | Priority | Assignee | Title |
| Patent | Priority | Assignee | Title |
| 2229009, | |||
| 173999, | |||
| D246767, | Nov 18 1975 | Electrical measuring instrument | |
| D282246, | Jan 21 1983 | British Gas Corporation | Portable transmitter unit for a metallic object detector |
| D289582, | Aug 17 1984 | John D. Brush & Co., Inc. | Portable fire resistant case |
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