3322255

Information

• Patent Grant
• 3322255

• References
• Source

• Patent Number

  3,322,255

• Date Filed

  Not available

• Date Issued

  Tuesday, May 30, 1967
  57 years ago

• CPC

  • F15B15/103 - using inflatable bodies that contract when fluid pressure is applied
  • B41J5/14 - Construction of key levers
  • B41J23/22 - for key or like type selection

• US Classifications

  • 400 - Typewriting machines
  • 084 - Music
  • 092 - Expansible chamber devices