3318056

Information

• Patent Grant
• 3318056

• References
• Source

• Patent Number

  3,318,056

• Date Filed

  Not available

• Date Issued

  Tuesday, May 9, 1967
  57 years ago

• CPC

  • E04F13/0864 - composed of superposed elements which overlap each other and of which the flat outer surface includes an acute angle with the surface to cover
  • E04B2/709 - obturation by means of longitudinal elements with a plane external surface

• US Classifications

  • 052 - Static structures