1665003

Information

• Patent Grant
• 1665003

• References
• Source

• Patent Number

  1,665,003

• Date Filed

  Not available

• Date Issued

  Tuesday, April 3, 1928
  96 years ago

• CPC

  • B42C7/005 - Creasing the back of covers
  • B42C7/004 - Rounding the back of covers

• US Classifications

  • 412 - Bookbinding: process and apparatus