3915256

Information

• Patent Grant
• 3915256

• References
• Source

• Patent Number

  3,915,256

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1975
  50 years ago

• CPC

  • G01V1/06 - Ignition devices
  • E21B47/042 - Measuring or locating liquid level

• US Classifications

  • 181 - Acoustics
  • 042 - Firearms