3531885

Information

• Patent Grant
• 3531885

• References
• Source

• Patent Number

  3,531,885

• Date Filed

  Not available

• Date Issued

  Tuesday, October 6, 1970
  54 years ago

• CPC

  • B43K29/0875 - with calendars
  • G09D3/06 - with rotatable members

• US Classifications

  • 040 - Card, picture, or sign exhibiting