+=item inventory_class
+
+Returns the inventory class (see L<FS::inventory_class>) for this device,
+if any.
+
+=cut
+
+sub inventory_class {
+ my $self = shift;
+ return '' unless $self->inventory_classnum;
+ qsearchs('inventory_class', { 'classnum' => $self->inventory_classnum });
+}
+