2579960

Information

• Patent Grant
• 2579960

• References
• Source

• Patent Number

  2,579,960

• Date Filed

  Not available

• Date Issued

  Tuesday, December 25, 1951
  73 years ago

• CPC

  • A61C13/245 - Vacuum enhancing devices
  • A61C13/04 - made by casting
  • A61C13/25 - including valve or air passageway leading from suction area to lingual cavity
  • Y10T29/49567 - Dental appliance making
  • Y10T29/4998 - Combined manufacture including applying or shaping of fluent material

• US Classifications

  • 029 - Metal working
  • 264 - Plastic and nonmetallic article shaping or treating: processes