1687633

Information

• Patent Grant
• 1687633

• References
• Source

• Patent Number

  1,687,633

• Date Filed

  Not available

• Date Issued

  Tuesday, October 16, 1928
  95 years ago

• CPC

  • G06C5/02 - Housing Framworks
  • H04M1/11 - Supports for sets

• US Classifications

  • 346 - Recorders
  • 281 - Books, strips, and leaves
  • 462 - Books, strips, and leaves for manifolding