|4129774||Filling materials for heating elements|
A heating element consisting of a metal pipe, an electric resistance conductor inserted into the metal pipe and a heat resistant insulating material filled between said metal pipe and said electric resistance conductor, characterized in that said heat res...
|4105530||Corrosion resistant electrodes for electrochemical use|
An electrode suitable for use in corrosion conditions is formed with its exposed surface composed of a substantially pore-free material consisting of an acid-resistant, semi-conducting oxide material in a fused glass. Titanium-doped ferric oxide semi-cond...