1528947

Information

• Patent Grant
• 1528947

• References
• Source

• Patent Number

  1,528,947

• Date Filed

  Not available

• Date Issued

  Tuesday, March 10, 1925
  99 years ago

• CPC

  • B22D19/0081 - pretreatment of the insert
  • B22D19/0018 - cylinders with fins
  • Y10T29/49272 - with liner, coating, or sleeve

• US Classifications

  • 164 - Metal founding
  • 029 - Metal working
  • 138 - Pipes and tubular conduits