US PATENT SUBCLASS 111 / 102
.~ Through mulch
Current as of: June, 1999
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DEFINITION
Classification:        111/102  
Through mulch:  
(under subclass 100) Process or apparatus where the plant  material is implaced through a natural or synthetic layer  
which breaks up the capillarity of a mineral soil layer  therebeneath.  
SEE OR SEARCH CLASS 
47, Plant Husbandry,  
9, for mulching, per se.