3678574

Information

• Patent Grant
• 3678574

• References
• Source

• Patent Number

  3,678,574

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1972
  52 years ago

• CPC

  • G02F1/0305 - Constructional arrangements
  • G02F2201/505 - Arrangements improving the resistance to acoustic resonance like noise
  • Y10T29/42 - Piezoelectric device making
  • Y10T29/49002 - Electrical device making

• US Classifications

  • 029 - Metal working
  • 228 - Metal fusion bonding