3734661

Information

• Patent Grant
• 3734661

• References
• Source

• Patent Number

  3,734,661

• Date Filed

  Not available

• Date Issued

  Tuesday, May 22, 1973
  51 years ago

• CPC

  • E04C2/243 - one at least of the material being insulating
  • B29C33/202 - Clamping means operating on closed or nearly closed mould parts, the clamping means being independently movable of the opening or closing means
  • B29C43/04 - using movable moulds
  • B29C44/14 - the preformed part being a lining
  • B29C44/424 - Details of machines
  • B29C67/243 - for making articles of definite length
  • B29C70/66 - the filler comprising hollow constituents
  • B29C2033/207 - mould clamping by pivoting members
  • B29K2105/165 - Hollow fillers
  • B29L2007/002 - Panels; Plates; Sheets
  • B29L2031/10 - Building elements

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus