2115939

Information

• Patent Grant
• 2115939

• References
• Source

• Patent Number

  2,115,939

• Date Filed

  Not available

• Date Issued

  Tuesday, May 3, 1938
  86 years ago

• CPC

  • A61C13/245 - Vacuum enhancing devices
  • A61C13/25 - including valve or air passageway leading from suction area to lingual cavity
  • Y10T137/7889 - Sleeve

• US Classifications

  • 433 - Dentistry
  • 137 - Fluid handling