1778138

Information

• Patent Grant
• 1778138

• References
• Source

• Patent Number

  1,778,138

• Date Filed

  Not available

• Date Issued

  Tuesday, October 14, 1930
  93 years ago

• CPC

  • B60T17/006 - Anti-frost devices

• US Classifications

  • 138 - Pipes and tubular conduits
  • 184 - Lubrication