知搜-全球专利检索

  1. Login
  2. Sign Up
Invention Grant
US2792204A Mining apparatus with rotary cutting and dislodging drum 失效
带旋转切割和移动滚筒的采矿设备

  • Patent Title: Mining apparatus with rotary cutting and dislodging drum
  • Patent Title (中): 带旋转切割和移动滚筒的采矿设备
  • Application No.: US46437254
    Application Date: 1954-10-25
  • Publication No.: US2792204A
    Publication Date: 1957-05-14
  • Inventor: FRANK CARTLIDGE
  • Applicant: GOODMAN MFG CO
  • Assignee: Goodman Mfg Co
  • Current Assignee: Goodman Mfg Co
  • Priority: US46437254 1954-10-25
  • Main IPC: E21C31/00
  • IPC: E21C31/00
Mining apparatus with rotary cutting and dislodging drum
Information query
Espacenet
Patent Agency Ranking
0/0