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Invention Grant
US3414458A Non-cracking tufted carpet with nonwoven secondary backing and method of making same 失效
无裂纹簇绒地毯，无纺二次背衬及其制作方法

  • Patent Title: Non-cracking tufted carpet with nonwoven secondary backing and method of making same
  • Patent Title (中): 无裂纹簇绒地毯，无纺二次背衬及其制作方法
  • Application No.: US51441465
    Application Date: 1965-12-16
  • Publication No.: US3414458A
    Publication Date: 1968-12-03
  • Inventor: LACY RICHARD I
  • Applicant: DU PONT
  • Assignee: Du Pont
  • Current Assignee: Du Pont
  • Priority: US51441465 1965-12-16
  • Main IPC: D06M15/693
  • IPC: D06M15/693 ;  D06N7/00
Non-cracking tufted carpet with nonwoven secondary backing and method of making same
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