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Invention Grant
US664896A Device for coiling plastic material. 失效
用于卷绕塑料材料的装置

  • Patent Title: Device for coiling plastic material.
  • Patent Title (中): 用于卷绕塑料材料的装置
  • Application No.: US1900024330
    Application Date: 1900-07-20
  • Publication No.: US664896A
    Publication Date: 1901-01-01
  • Inventor: ROBERTSON ROBERT
  • Applicant: ROBERTSON ROBERT
  • Assignee: Robert Robertson
  • Current Assignee: Robert Robertson
  • Priority: US1900024330 1900-07-20
Device for coiling plastic material.
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