3516733

Information

• Patent Grant
• 3516733

• References
• Source

• Patent Number

  3,516,733

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1970
  54 years ago

• CPC

  • G03B21/132 - Overhead projectors
  • Y10S353/04 - Opaque

• US Classifications

  • 359 - Optical: systems and elements
  • 353 - Optics: image projectors