Stepan Kreftsun

Person

  • Winnipeg, CA

Patents Applicationslast 30 patents

  • Information Patent Application

    Divided hollow core slab extruder

    • Publication number 20040142060
    • Publication date Jul 22, 2004
    • Ultra-Span Technologies Inc.
    • Joseph L. Kiss
    • B28 - WORKING CEMENT, CLAY, OR STONE