2874569

Information

• Patent Grant
• 2874569

• References
• Source

• Patent Number

  2,874,569

• Date Filed

  Not available

• Date Issued

  Tuesday, February 24, 1959
  65 years ago

• CPC

  • G01F3/225 - characterised by constructional features of membranes or by means for improving proper functioning of membranes

• US Classifications

  • 073 - Measuring and testing
  • 092 - Expansible chamber devices