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Process for Hardening Copper.

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  • معلومة اضافية
    • بيانات النشر:
      United States. Patent Office.
    • الموضوع:
      1920
    • Collection:
      The Portal to Texas History (University of North Texas)
    • الموضوع:
      United States - Texas - Sabine County - Geneva
    • نبذة مختصرة :
      Patent for a process of hardening copper to prevent bending and scaling of the metal. The process involves heating copper to a high temperature (1370 degrees Fahrenheit) and then subjecting it to continual pressure through hammering it until cold.
    • File Description:
      [1] p.; 23 cm.; Text
    • Relation:
      pat-no: 1331479; govno: 02/282373; https://texashistory.unt.edu/ark:/67531/metapth1256738/; ark: ark:/67531/metapth1256738
    • Rights:
      Public Domain
    • الرقم المعرف:
      edsbas.BF2200C