73130881
Jun 17, 1977
Jul 17, 1979
MACHINERY FOR USE WITH GLASS MELTING FURNACES-NAMELY, BATCH HANDLING MACHINES AND MACHINES FOR HANDLING AND FORMING MOLTEN GLASS
MachineryELECTRODES, ELECTRODE HOLDERS, TRANSFORMERS AND SWITCHES FOR GLASS MELTING FURNACES, FEEDERS AND TANKS
Electrical and Scientific ApparatusGLASS MELTING FURNACES AND OIL AND GAS BURNERS USED WITH SUCH FURNACES
Environmental Control Apparatus