2236226

Information

• Patent Grant
• 2236226

• References
• Source

• Patent Number

  2,236,226

• Date Filed

  Not available

• Date Issued

  Tuesday, March 25, 1941
  83 years ago

• CPC

  • B44B1/04 - having devices for changing
  • B43L13/10 - Pantographic instruments for copying, enlarging, or diminishing

• US Classifications

  • 033 - Geometrical instruments