Philosophic instruments and apparatus for useful purposes, inclusive of electrodes of coal and graphite; graphite for electrolytic plants; condensers; absorbers of coal and graphite and for chemical purposes; taps and valves made entirely with impregnated graphite and armatures and apparatuses which to a preponderating part consist of graphite and coal and which are used in the chemical industry and allied industries and comprising glands, tube parts and stress equalizing elements,

Anti-corrosives,

Cements made from coal and graphite powder with a binding of artificial resin and tar,

Heating rods for resistance stoves; armatures and apparatus made from coal and graphite in the nature of heat exchangers; linings for blast-furnaces made from amorphous coal,

Shaped parts made of coal and graphite (being sheets, rods, tubes), with, as well as without, impregnation (artifical resin, tar, chlorinated linseed oil); plastic masses of coal and graphite in combination with tar and other binding materials, in particular, stamping mass, electrode stamping mass and coal stamping mass,

Heating rods for resistance stoves; armatures and apparatuses in the nature of heat exchangers; linings for blast-furnaces made of amorphous coal,

Philosophical instruments, scientific instruments and apparatus for useful purposes, inclusive of electrodes of coal and graphite for electrolytic plants, armatures and apparatuses made from coal and graphite in the nature of condensers, absorbers of coal and graphite and for chemical purposes, taps and valves made entirely with impregnated graphite, and armatures and apparatuses which to a preponderating part consist of graphite and coal and which are used in the chemical industry and allied industries and comprising glands, tube parts and stress equalizing elements,

Shaped parts made of coal and graphite (being sheets, rods, tubes) with, as well as without, impregnation (artificial resin, tar, chlorinated linseed oil); plastic masses of coal and graphite in combination with tar and other binding materials, in particular, stamping mass, electrode stamping mass and coal stamping mass,

Cement made from coal and graphite powder with a binding of artificial resin and tar,

Graphite and coal in the form of gravel and powder, chemical substances used in manufactures, photography or philosophical research inclusive of plastic moulding substances,