1708459

Information

• Patent Grant
• 1708459

• References
• Source

• Patent Number

  1,708,459

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1929
  96 years ago

• CPC

  • G08B5/008 - Traffic signalling mirrors
  • E01F9/608 - for guiding, warning or controlling traffic
  • E01F9/619 - with reflectors with means for keeping reflectors clean

• US Classifications

  • 359 - Optical: systems and elements
  • 040 - Card, picture, or sign exhibiting
  • D10 - Measuring, testing, or signalling instruments