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| central office for approvals in the telecommunications sector | |||
| DTAG Central Approval Office for Telecommunications (corresponds to BABT in GB); Central Approval Office for Telecommunications (corresponds to BABT in GB; till 1992, now BZT, q.v.) | |||
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| central office for approvals in the telecommunications sector | |||
| DTAG Central Approval Office for Telecommunications (corresponds to BABT in GB); Central Approval Office for Telecommunications (corresponds to BABT in GB; till 1992, now BZT, q.v.) | |||