1689550

Information

• Patent Grant
• 1689550

• References
• Source

• Patent Number

  1,689,550

• Date Filed

  Not available

• Date Issued

  Tuesday, October 30, 1928
  96 years ago

• CPC

  • A01B33/024 - with disk-like tools
  • Y10S261/53 - Valve actuation

• US Classifications

  • 172 - Earth working
  • 261 - Gas and liquid contact apparatus