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The ornamental design for a dump valve for attachment to fire engine tankers, as shown. |
FIG. 1 is a perspective view of a dump valve for attachment to fire engine tankers showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a rear elevational view thereof;
FIG. 7 is a front elevational view thereof; and
FIG. 8 is a cross-sectional view of FIG. 2 along lines 8--8.
Ziaylek, Michael P., Ziaylek, Jr., Theodore
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