1447229

Information

• Patent Grant
• 1447229

• References
• Source

• Patent Number

  1,447,229

• Date Filed

  Not available

• Date Issued

  Tuesday, March 6, 1923
  101 years ago

• CPC

  • A41H3/015 - of adjustable type

• US Classifications

  • 033 - Geometrical instruments
  • 101 - Printing