1635267

Information

• Patent Grant
• 1635267

• References
• Source

• Patent Number

  1,635,267

• Date Filed

  Not available

• Date Issued

  Tuesday, July 12, 1927
  98 years ago

• CPC

  • G08B5/008 - Traffic signalling mirrors
  • E01F9/619 - with reflectors with means for keeping reflectors clean

• US Classifications

  • 359 - Optical: systems and elements