DP

David W. Pring

BL British Telecommunications Public Limited: 1 patents #627 of 1,458Top 45%
Overall (All Time): #3,902,540 of 4,157,543Top 95%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4924489 Customer line tester Peter John Lawrence 1990-05-08