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Browse by Category: Main > Construction
Class Information
Number: 175/13
Name: Boring or penetrating the earth > Boring by directly applying heat to fluidize or comminute > With introduction of slag forming flux
Description: Subject matter in which a chemical compound is directed into the heated or molten mass of disintegrated material to bring about the formation of a resultant product having a desirable property (e.g., to increase fluidity).










Patents under this class:

Patent Number Title Of Patent Date Issued
4227582 Well perforating apparatus and method Oct. 14, 1980











 
 
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