1978667

Information

• Patent Grant
• 1978667

• References
• Source

• Patent Number

  1,978,667

• Date Filed

  Not available

• Date Issued

  Tuesday, October 30, 1934
  90 years ago

• CPC

  • B60T13/248 - Mechanical command of the control valve, hydraulic transmission to the brakes
  • Y10T403/31 - Flexible diaphragm or bellows

• US Classifications

  • 092 - Expansible chamber devices
  • 074 - Machine element or mechanism
  • 091 - Motors: expansible chamber type
  • 188 - Brakes
  • 403 - Joints and connections