1537575

Information

• Patent Grant
• 1537575

• References
• Source

• Patent Number

  1,537,575

• Date Filed

  Not available

• Date Issued

  Tuesday, May 12, 1925
  99 years ago

• CPC

  • H01B13/282 - by winding

• US Classifications

  • 178 - Telegraphy
  • 174 - Electricity: conductors and insulators