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The ornamental design for a doorbell button, as shown and described. |
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FIG. 1 is a front view.
FIG. 2 is a side view.
FIG. 3 is a rear view; and,
FIG. 4 is a perspective view.
The undisclosed side and bottom of the claimed design are mirror images of the side and top that are shown, respectively, in FIGS. 2 and 4.
Gordon, Tom, Pierson, Theodore
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