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Invention Grant
US2210150A Concrete block for paths, roads, and the like 失效
道路，道路等的混凝土块

  • Patent Title: Concrete block for paths, roads, and the like
  • Patent Title (中): 道路，道路等的混凝土块
  • Application No.: US22338238
    Application Date: 1938-08-06
  • Publication No.: US2210150A
    Publication Date: 1940-08-06
  • Inventor: GENNARO NOTARI
  • Applicant: GENNARO NOTARI
  • Assignee: Notari Gennaro
  • Current Assignee: Notari Gennaro
  • Priority: US22338238 1938-08-06
  • Main IPC: E01C9/00
  • IPC: E01C9/00
Concrete block for paths, roads, and the like
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