3477288

Information

• Patent Grant
• 3477288

• References
• Source

• Patent Number

  3,477,288

• Date Filed

  Not available

• Date Issued

  Tuesday, November 11, 1969
  55 years ago

• CPC

  • G01N29/11 - by measuring attenuation of acoustic waves
  • G01N33/447 - Leather
  • G01N2291/0237 - Thin materials
  • G01N2291/102 - one emitter, one receiver

• US Classifications

  • 073 - Measuring and testing