1788658

Information

• Patent Grant
• 1788658

• References
• Source

• Patent Number

  1,788,658

• Date Filed

  Not available

• Date Issued

  Tuesday, January 13, 1931
  94 years ago

• CPC

  • B43L19/0012 - Mechanical motors

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning
  • 400 - Typewriting machines