1440302

Information

• Patent Grant
• 1440302

• References
• Source

• Patent Number

  1,440,302

• Date Filed

  Not available

• Date Issued

  Tuesday, December 26, 1922
  102 years ago

• CPC

  • B43L17/02 - for blotting-paper sheets

• US Classifications

  • 033 - Geometrical instruments