910630

Information

• Patent Grant
• 910630

• References
• Source

• Patent Number

  910,630

• Date Filed

  Not available

• Date Issued

  Tuesday, January 26, 1909
  116 years ago

• CPC

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

• US Classifications

  • 346 - Recorders