1080306

Information

• Patent Grant
• 1080306

• References
• Source

• Patent Number

  1,080,306

• Date Filed

  Not available

• Date Issued

  Tuesday, December 2, 1913
  111 years ago

• CPC

  • G01D9/20 - the recording element
  • G07C5/12 - in graphical form

• US Classifications

  • 346 - Recorders