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The ornamental design for a perpetual calendar, as shown. |
FIG. 1 is a front elevational view of the perpetual calendar of the present invention;
FIG. 2 is a rear elevational view of the perpetual calendar of FIG. 1;
FIG. 3 is a left side elevational view of the perpetual calendar of FIG. 1;
FIG. 4 is a right side elevational view of the perpetual calendar of FIG. 1;
FIG. 5 is a top plan view of the perpetual calendar of FIG. 1; and,
FIG. 6 is a bottom plan view of the perpetual calendar of FIG. 1.
Patent | Priority | Assignee | Title |
D722110, | Oct 18 2012 | Calendar |
Patent | Priority | Assignee | Title |
1611538, | |||
3991499, | May 21 1974 | Variable calendar | |
476263, | |||
233521, | |||
D246048, | Sep 18 1975 | Wall calendar | |
D279689, | Dec 16 1982 | Perpetual calendar |
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