1852645

Information

• Patent Grant
• 1852645

• References
• Source

• Patent Number

  1,852,645

• Date Filed

  Not available

• Date Issued

  Tuesday, April 5, 1932
  92 years ago

• CPC

  • B41K3/28 - and bearing a positive image
  • B41K3/58 - using ink ribbons, ink sheets, or carbon tape or paper

• US Classifications

  • 101 - Printing