1286647

Information

• Patent Grant
• 1286647

• References
• Source

• Patent Number

  1,286,647

• Date Filed

  Not available

• Date Issued

  Tuesday, December 3, 1918
  106 years ago

• CPC

  • G04D7/001 - Purely mechanical measuring and testing apparatus

• US Classifications

  • 033 - Geometrical instruments
  • 968 - Horology