1672077

Information

• Patent Grant
• 1672077

• References
• Source

• Patent Number

  1,672,077

• Date Filed

  Not available

• Date Issued

  Tuesday, June 5, 1928
  96 years ago

• CPC

  • F21H3/00 - Manufacturing incandescent mantles Treatment prior to use

• US Classifications

  • 073 - Measuring and testing