3687697

Information

• Patent Grant
• 3687697

• References
• Source

• Patent Number

  3,687,697

• Date Filed

  Not available

• Date Issued

  Tuesday, August 29, 1972
  52 years ago

• CPC

  • C03C4/0057 - for ultrasonic delay lines glass
  • C03C3/102 - containing lead
  • C03C3/105 - containing aluminium

• US Classifications

  • 501 - Compositions: ceramic
  • 333 - Wave transmission lines and networks