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Invention Grant
US1060657A Razor-blade sharpener. 失效
RAZOR-BLADE SHARPENER。

  • Patent Title: Razor-blade sharpener.
  • Patent Title (中): RAZOR-BLADE SHARPENER。
  • Application No.: US1060657D
    Application Date:
  • Publication No.: US1060657A
    Publication Date: 1913-05-06
  • Inventor: ALTER CHRISTIAN
  • Applicant: ALTER CHRISTIAN
  • Assignee: Christian Alter
  • Current Assignee: Christian Alter
  • Priority: US1060657T null
Razor-blade sharpener.
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