1477352

Information

• Patent Grant
• 1477352

• References
• Source

• Patent Number

  1,477,352

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1923
  101 years ago

• CPC

  • E02F3/9293 - Component parts of suction heads
  • E02F3/9225 - with rotating cutting elements

• US Classifications

  • 037 - Excavating