1967895

Information

• Patent Grant
• 1967895

• References
• Source

• Patent Number

  1,967,895

• Date Filed

  Not available

• Date Issued

  Tuesday, July 24, 1934
  90 years ago

• CPC

  • G01R13/12 - Chemical recording

• US Classifications

  • 346 - Recorders
  • 347 - Incremental printing of symbolic information