2503140

Information

• Patent Grant
• 2503140

• References
• Source

• Patent Number

  2,503,140

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1950
  75 years ago

• CPC

  • C03B15/16 - Drawing tubes, cylinders or rods, coated with coloured layers

• US Classifications

  • 138 - Pipes and tubular conduits
  • 501 - Compositions: ceramic