1988665

Information

• Patent Grant
• 1988665

• References
• Source

• Patent Number

  1,988,665

• Date Filed

  Not available

• Date Issued

  Tuesday, January 22, 1935
  90 years ago

• CPC

  • B60S3/006 - specially adapted for railway vehicles
  • B60S3/063 - the axis of rotation being approximately vertical

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning