US PATENT SUBCLASS 52 / 747.13
.~.~.~ Refactory

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

741.1  DF  PROCESSES {14}
747.1  DF  .~ Assembling exposed modules {3}
747.12  DF  .~.~ Stone-like module {1}
747.13.~.~.~ Refactory

DEFINITION

Classification: 52/747.13

Refractory:

(under subclass 747.12) Subject matter wherein the module includes the specificity of resistance to extreme heat or the by-products thereof (e.g., lining or construction of an oven, kiln, furnace, ladle, chimney, etc.).