| 摘要 |
Slide rule-calendar comprising one fixed part (3), two sliding parts (1, 2) and one cursor (4). On the lower part of the fixed part (3), the thirty-one solar days of the longest month are indicated horizontally. The twelve months of the year are indicated on the left vertical area of the fixed part (3) and also on the cursor (4).
<??>By positioning the two sliding parts (1, 2) on predetermined parameters reported on the top and bottom left of the fixed part (3) which correspond as a pair to a series of equivalent years and by moving the cursor (4) to the desired day, one can single out all the days of the week of the equivalent past and future years corresponding to said pair of parameters, with only one position of the two sliding parts (1, 2).
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