1515 1918 1624 1544 1901 1973 1681 1011 1567 1949 1459 1798 1880 1772 1039 1827 1456 1601 1176 1923 1161 1932 1361 1246 1786 1094 1969 1899 1139 1276 1281 1733 1848 1819 1478 1101 1636 1483 1976 1926 1924 1005 1912 1741 1575 1229 1120 1594 1295 1993 1154 1413 1126 1787 1626 1863 1733 1442 1772 1695 1200 1203 1885 1289 1210 1954 1376 1153 1264 1605 1653 1439 1335 1028 1063 1454 1647 1585 1454 1712 1156 1028 1032 1034 1122 1186 1106 1159 1506 1549 1912 1835 1660 1090 1292 1778 1467 1981 1989 BCNSPRNW ULIB Ver.6.0+V
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ลำดับที่LC คำอธิบาย
21 Telecommunication industry. Telegraph
22 Wireless telegraph. Radiotelegraphy
23 Radio and television broadcasting
24 Telephone industry
25 Cellular telephone services industry. Wireless telephone industry
26 Artificial satellite telecommunications
27 Signaling
28 Messenger service
29 Air transportation. Airlines
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