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B-030 adapter, male plug with female jack patent no. 34110 (TWN) |
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B-031A adapter, male plug with female jack, break in type |
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B-033 adapter, male plug with female jack and US jack 6p4c patent no. 34110 (TWN) |
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B-034 adapter, male plug with female jack and US jack 8p4c, for ISDN connected |
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