1398828

Information

• Patent Grant
• 1398828

• References
• Source

• Patent Number

  1,398,828

• Date Filed

  Not available

• Date Issued

  Tuesday, November 29, 1921
  103 years ago

• CPC

  • F41G5/26 - Apparatus for testing or checking

• US Classifications

  • 073 - Measuring and testing
  • 346 - Recorders