3681812

Information

• Patent Grant
• 3681812

• References
• Source

• Patent Number

  3,681,812

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1972
  51 years ago

• CPC

  • B60S1/0405 - the cavity being equipped with a movable cover

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning