2897594

Information

• Patent Grant
• 2897594

• References
• Source

• Patent Number

  2,897,594

• Date Filed

  Not available

• Date Issued

  Tuesday, August 4, 1959
  65 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