US PATENT SUBCLASS 162 / 219
.~.~ Plural stage deposition


Current as of: June, 1999
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162 /   HD   PAPER MAKING AND FIBER LIBERATION

100  DF  PROCESSES AND PRODUCTS {31}
218  DF  .~ Article forming processes (pulp molding) {7}
219.~.~ Plural stage deposition


DEFINITION

Classification: 162/219

(under subclass 218) Processes in which fibers are deposited from suspensions thereof at a plurality of different times or locations.

(1) Note. One of the component layers or units of the

product may have been previously produced by a waterlaying operation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

103+, for processes of producing a composite web, sheet or article, which includes at least one solid nonwaterlaid component.

123+, for processes of making composite webs or sheets from a plurality of waterlaid webs or sheets.