1424968

Information

• Patent Grant
• 1424968

• References
• Source

• Patent Number

  1,424,968

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1922
  102 years ago

• CPC

  • B42F21/00 - Indexing means Indexing tabs or protectors therefor
  • B42D12/005 - Heading indicators

• US Classifications

  • 283 - Printed matter
  • 237 - Heating systems