2133634

Information

• Patent Grant
• 2133634

• References
• Source

• Patent Number

  2,133,634

• Date Filed

  Not available

• Date Issued

  Tuesday, October 18, 1938
  86 years ago

• CPC

  • B22D18/06 - Vacuum casting
  • B22D41/48 - Meltable closures
  • Y10S164/07 - Melt
  • Y10T29/49879 - Spaced wall tube or receptacle

• US Classifications

  • 164 - Metal founding
  • 029 - Metal working
  • 266 - Metallurgical apparatus