2636268

Information

• Patent Grant
• 2636268

• References
• Source

• Patent Number

  2,636,268

• Date Filed

  Not available

• Date Issued

  Tuesday, April 28, 1953
  71 years ago

• CPC

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

• US Classifications

  • 433 - Dentistry
  • 235 - Registers