2844820

Information

• Patent Grant
• 2844820

• References
• Source

• Patent Number

  2,844,820

• Date Filed

  Not available

• Date Issued

  Tuesday, July 29, 1958
  66 years ago

• CPC

  • A42B1/068 - with additional protection for the ears; Removable ear muffs
  • A42B3/166 - Integral hearing protection

• US Classifications

  • 002 - Apparel
  • 128 - Surgery