DD

David M. Davidson

SP Standard Telephones And Cables Pty.: 1 patents #11 of 49Top 25%
SP Stc Plc: 1 patents #73 of 231Top 35%
📍 Codicote, GB: #3 of 5 inventorsTop 60%
Overall (All Time): #2,328,916 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4809260 Telephone exchange John R. Bungard, Robert Gatward 1989-02-28
4581733 Telecommunication exchange Gary A. Sarson, John R. Bungard 1986-04-08