2777442

Information

• Patent Grant
• 2777442

• References
• Source

• Patent Number

  2,777,442

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1957
  67 years ago

• CPC

  • A44C15/0065 - on the nose or nostrils
  • A62B23/06 - Nose filters

• US Classifications

  • 128 - Surgery