Difference between revisions of "J:運輸・通信業 通信"
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− | *[ | + | *[[:Category:J-16:通信業 |J-16. 通信業]] |
− | *[ | + | *[[:Category:J-17:郵便業 |J-17. 郵便業]] |
− | *[ | + | *[[:Category:J-18:電信・電話業 |J-18. 電信・電話業]] |