1700766

Information

• Patent Grant
• 1700766

• References
• Source

• Patent Number

  1,700,766

• Date Filed

  Not available

• Date Issued

  Tuesday, February 5, 1929
  97 years ago

• CPC

  • H01B11/143 - using helically wound magnetic tape

• US Classifications

  • 178 - Telegraphy
  • 123 - Internal-combustion engines