US PATENT SUBCLASS 451 / 534
.~.~ Discontinuous or differential coating impregnation or bond


Current as of: June, 1999
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451 /   HD   ABRADING

526  DF  FLEXIBLE-MEMBER TOOL, PER SE {5}
533  DF  .~ Laminate {6}
534.~.~ Discontinuous or differential coating impregnation or bond


DEFINITION

Classification: 451/534

Discontinuous or differential coating impregnation or bond:

(under subclass 533) Flexible-member tool comprising plastic facing, saturating, or joining material which is present in isolated areas, or as differing compositions, or varying in concentration or in physical characteristics; or comprising plural layers whose juncture (either adhesive or cohesive) is of different character (e.g., strong bond next to weak bond) in different areas of the tool.

(1) Note. The plastic material may be abrasive particles of different kinds.

SEE OR SEARCH CLASS

428, Stock Material or Miscellaneous Articles,

103+, 194, and 195+ for a single or plural layer stock material product in the form of a web or sheet embodying a differential or discontinuous coating, impregnation, or bond.