US PATENT SUBCLASS 51 / 307
WITH INORGANIC MATERIAL

Current as of: June, 1999
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51 /   HD   ABRASIVE TOOL MAKING PROCESS, MATERIAL, OR COMPOSITION

307WITH INORGANIC MATERIAL {2}
308  DF  .~> Clay, silica, or silicate
309  DF  .~> Metal or metal oxide

DEFINITION

Classification: 51/307

WITH INORGANIC MATERIAL:

(under the class definition) Subject matter including (a) a process involving the use of inorganic material or (b) a material or composition including inorganic material.

SEE OR SEARCH CLASS

423, Chemistry of Inorganic Compounds, subject matter under

307, in which the inorganic material comprises clay, silica,

or silicate.