1897536

Information

• Patent Grant
• 1897536

• References
• Source

• Patent Number

  1,897,536

• Date Filed

  Not available

• Date Issued

  Tuesday, February 14, 1933
  92 years ago

• CPC

  • B64C11/065 - variable only when stationary

• US Classifications

  • 416 - Fluid reaction surfaces
  • 073 - Measuring and testing