DIFF Subgroup
H01T 13/18 Means for heating, e.g. for drying
Introduced: September 1968
Full Title
Sparking plugs > Details > Means for heating, e.g. for drying
No child classifications to compare. This is a leaf node in both IPC and CPC.
H01T 13/18 Introduced: September 1968
Sparking plugs > Details > Means for heating, e.g. for drying
No child classifications to compare. This is a leaf node in both IPC and CPC.