3490345

Information

• Patent Grant
• 3490345

• References
• Source

• Patent Number

  3,490,345

• Date Filed

  Not available

• Date Issued

  Tuesday, January 20, 1970
  54 years ago

• CPC

  • F02F3/042 - the inserts consisting of reinforcements in the skirt interconnecting separate wall parts
  • F05C2251/042 - Expansivity

• US Classifications

  • 092 - Expansible chamber devices