1637528

Information

• Patent Grant
• 1637528

• References
• Source

• Patent Number

  1,637,528

• Date Filed

  Not available

• Date Issued

  Tuesday, August 2, 1927
  97 years ago

• CPC

  • B60Q1/34 - for indicating change of drive direction
  • Y10S200/35 - Weight operated tread/treadless switch

• US Classifications

  • 362 - Illumination
  • 200 - Electricity: circuit makers and breakers
  • 315 - Electric lamp and discharge devices: systems