1839564

Information

• Patent Grant
• 1839564

• References
• Source

• Patent Number

  1,839,564

• Date Filed

  Not available

• Date Issued

  Tuesday, January 5, 1932
  93 years ago

• CPC

  • B43L17/02 - for blotting-paper sheets

• US Classifications

  • 034 - Drying and gas or vapor contact with solids
  • 281 - Books, strips, and leaves