1993721

Information

• Patent Grant
• 1993721

• References
• Source

• Patent Number

  1,993,721

• Date Filed

  Not available

• Date Issued

  Tuesday, March 5, 1935
  89 years ago

• CPC

  • F04C15/0011 - of rigid material

• US Classifications

  • 418 - Rotary expansible chamber devices
  • 277 - Seal for a joint or juncture