| http://www.w3.org/ns/prov#value | - In other words, out of the 63 types of patterns, ones having small holes Ah at outermost locations of the stamp body A are assigned to stamp bodies A for the square stamps and the like which have small widths, whereby stamp bodies which do not have a sufficient width for possible small holes Ah corresponding to all the detecting switches 263 can be discriminated, without decreasing the number of p
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