3719999

Information

• Patent Grant
• 3719999

• References
• Source

• Patent Number

  3,719,999

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1973
  51 years ago

• CPC

  • B43L9/245 - for mounting centering elements

• US Classifications

  • 033 - Geometrical instruments
  • 359 - Optical: systems and elements