3555683

Information

• Patent Grant
• 3555683

• References
• Source

• Patent Number

  3,555,683

• Date Filed

  Not available

• Date Issued

  Tuesday, January 19, 1971
  54 years ago

• CPC

  • A61C13/245 - Vacuum enhancing devices
  • A61C13/24 - Fastening by suction
  • A61C13/25 - including valve or air passageway leading from suction area to lingual cavity

• US Classifications

  • 433 - Dentistry