1154673

Information

• Patent Grant
• 1154673

• References
• Source

• Patent Number

  1,154,673

• Date Filed

  Not available

• Date Issued

  Tuesday, September 28, 1915
  109 years ago

• CPC

  • B43L9/002 - with perforated or marked discs

• US Classifications

  • 033 - Geometrical instruments
  • D10 - Measuring, testing, or signalling instruments