3762809

Information

• Patent Grant
• 3762809

• References
• Source

• Patent Number

  3,762,809

• Date Filed

  Not available

• Date Issued

  Tuesday, October 2, 1973
  51 years ago

• CPC

  • G03B21/132 - Overhead projectors
  • Y10S353/04 - Opaque
  • Y10S353/05 - Transparency holder accessories

• US Classifications

  • 353 - Optics: image projectors