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The ornamental design for a circular door latch lock for trailers and containers, as shown and described.
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FIG. 1 is a front perspective view showing my new design for a door latch lock;
FIG. 2 is a bottom plan view;
FIG. 3 is a top plan view;
FIG. 4 is a left side elevational which is a mirror image of the right side view;
FIG. 5 is a front elevational view; and,
FIG. 6 is a rear elevational view.
The broken line drawings of a trailer/container door latch and lock key are for illustrative purposes only and form no part of the claimed design.
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