发明授权
US702081A Manufacture of glass by electrical heating. 失效
通过电加热制造玻璃。

  • 专利标题: Manufacture of glass by electrical heating.
  • 专利标题(中): 通过电加热制造玻璃。
  • 申请号: US1900031312
    申请日: 1900-09-27
  • 公开(公告)号: US702081A
    公开(公告)日: 1902-06-10
  • 发明人: VOELKER AUGUST
  • 申请人: VOELKER AUGUST
  • 专利权人: August Voelker
  • 当前专利权人: August Voelker
  • 优先权: US1900031312 1900-09-27
Manufacture of glass by electrical heating.
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