2195137

Information

• Patent Grant
• 2195137

• References
• Source

• Patent Number

  2,195,137

• Date Filed

  Not available

• Date Issued

  Tuesday, March 26, 1940
  84 years ago

• CPC

  • A47B41/06 - Holders or supports for guiding copy-books, slates, or the like
  • B43L3/00 - Writing or drawing underlays
  • G09B11/04 - Guide sheets or plates Tracing charts

• US Classifications

  • 434 - Education and demonstration