1989408

Information

• Patent Grant
• 1989408

• References
• Source

• Patent Number

  1,989,408

• Date Filed

  Not available

• Date Issued

  Tuesday, January 29, 1935
  90 years ago

• CPC

  • B24B7/245 - discontinuous

• US Classifications

  • 451 - Abrading
  • 068 - Textiles: fluid treating apparatus