3291552

Information

• Patent Grant
• 3291552

• References
• Source

• Patent Number

  3,291,552

• Date Filed

  Not available

• Date Issued

  Tuesday, December 13, 1966
  58 years ago

• CPC

  • B43L13/004 - Manual lettering devices
  • Y10T16/546 - Three-hinged members
  • Y10T16/551 - having stop or abutment

• US Classifications

  • 359 - Optical: systems and elements
  • 016 - Miscellaneous hardware
  • 033 - Geometrical instruments