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I,349,821
to receive a lock for locking the disks to- gether, the rearmost disk having near its periphery and inside the annular openings a series of consecutively arranged numerals in. 5 dicating the days of the month, the foremost disk having a series of display openings for permitting a certain predetermined se-
quence of numbers to be visible simultane- ously, and having other display openings, the rearmost disk having legends to be dis- 10 played through said other display open- ings. JAMES WILLIAM CARTER, Jn.