74202863
Sep 10, 1991
Feb 15, 1994
electrical plugs and sockets; convertible high-frequency plugs and sockets; test accessories and coaxial components for high-frequency measurements; namely, T-branches and X-branches with and without internal resistors, components with specific transfer functions; namely, filters, filters for electrical measurements; balons; bridges; signal pre-emphasizers and de-emphasizers
Electrical and Scientific Apparatus