148, Metal Treatment, subclass 121 for the heat treatment of magnetic materials to intentionally change the magnetic properties, and subclass 509 for heat treatment of solid or semi-solid metal to modify or maintain the internal physical structure (i.e., microstructure) or chemical property of metal combined with the measuring, sensing, or testing of magnetic properties.
(Metal Treatment; to intentionally change; the magnetic properties) (Metal Treatment; to subclass; 509 for heat treatment of solid or semi-solid metal) (the internal physical structure (i.e., microstructure) or chemical property of metal; combined; with the measuring, sensing, or testing of magnetic properties)
Metal Treatment Metal Treatment the internal physical structure (i.e., microstructure) or chemical property of metal
to intentionally change to subclass combined
the magnetic properties
509 for heat treatment of solid or semi-solid metal
with the measuring, sensing, or testing of magnetic properties