1961415

Information

• Patent Grant
• 1961415

• References
• Source

• Patent Number

  1,961,415

• Date Filed

  Not available

• Date Issued

  Tuesday, June 5, 1934
  90 years ago

• CPC

  • B64C11/005 - Spiral-shaped propellers

• US Classifications

  • 416 - Fluid reaction surfaces
  • 415 - Rotary kinetic fluid motors or pumps