2157902

Information

• Patent Grant
• 2157902

• References
• Source

• Patent Number

  2,157,902

• Date Filed

  Not available

• Date Issued

  Tuesday, May 9, 1939
  85 years ago

• CPC

  • C23C10/46 - of ferrous surfaces

• US Classifications

  • 427 - Coating processes
  • 428 - Stock material or miscellaneous articles