3076481

Information

• Patent Grant
• 3076481

• References
• Source

• Patent Number

  3,076,481

• Date Filed

  Not available

• Date Issued

  Tuesday, February 5, 1963
  61 years ago

• CPC

  • E04B2/842 - by projecting or otherwise applying hardenable masses to the exterior of a form leaf
  • B01D3/32 - Other features of fractionating columns; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
  • E04C2/421 - made of bar-like elements
  • E04B2/723 - constituted of gypsum elements

• US Classifications

  • 052 - Static structures
  • 138 - Pipes and tubular conduits