2693734

Information

• Patent Grant
• 2693734

• References
• Source

• Patent Number

  2,693,734

• Date Filed

  Not available

• Date Issued

  Tuesday, November 9, 1954
  70 years ago

• CPC

  • H04Q1/34 - Impulse regenerators with mechanical or other non-electrical marking arrangements

• US Classifications

  • 250 - Radiant energy
  • 356 - Optics: measuring and testing
  • 359 - Optical: systems and elements
  • 379 - Telephonic communications