.~ Wear liners or surface characteristics (e.g., anti-erosion)
DEFINITION
Classification: 55/435
(under subclass 434) Apparatus having (1) means in addition to casing walls or mere separating means flow passages especially designed to reduce or prevent erosion or abrading of apparatus parts or (2) separating surfaces of peculiar composition or especially treated as by alloying, coating or hardening to withstand rapid deterioration of such surfaces.
