2172978

Information

• Patent Grant
• 2172978

• References
• Source

• Patent Number

  2,172,978

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1939
  85 years ago

• CPC

  • H01B11/1869 - Construction of the layers on the outer side of the outer conductor
  • Y10S29/028 - Magnetic recording digest
  • Y10T428/12333 - Helical or with helical component
  • Y10T428/1241 - Nonplanar uniform thickness or nonlinear uniform diameter [e.g., L-shape]
  • Y10T428/12444 - Embodying fibers interengaged or between layers [e.g., paper, etc.]
  • Y10T428/12535 - with additional, spatially distinct nonmetal component
  • Y10T428/12542 - More than one such component
  • Y10T428/12701 - Pb-base component
  • Y10T428/12903 - Cu-base component
  • Y10T428/12958 - Next to Fe-base component

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 029 - Metal working
  • 174 - Electricity: conductors and insulators
  • 536 - Organic compounds