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Inventor
COLLAR GEOFFREY A
CA
2 patents
Patents
2 patents
US4709389A
Nov 24, 1987
Telephone hook switch with elastomeric contact member
NORTHERN TELECOM LTD
10 citations
70
US4647729A
Mar 3, 1987
Circuit board with contact positions, as used for telecommunications terminals and other apparatus
NORTHERN TELECOM LTD
9 citations
68