摘要 |
A working panel includes first array board patterns arranged in a first region and including first and second guide bar patterns facing each other and N first unit board patterns, where N is a natural number greater than or equal to 2, positioned between the first and second guide bar patterns, and second array board patterns including third and fourth guide bar patterns facing each other, and M second unit board patterns, where 1≦̸M<N, positioned between the third and fourth guide bar patterns.
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