3570293

Information

• Patent Grant
• 3570293

• References
• Source

• Patent Number

  3,570,293

• Date Filed

  Not available

• Date Issued

  Tuesday, March 16, 1971
  53 years ago

• CPC

  • E04B1/3205 - Structures with a longitudinal horizontal axis
  • B21D47/00 - Making rigid structural elements or units
  • B21D53/76 - writing or drawing instruments
  • E04B2001/3217 - Auxilliary supporting devices used during erection of the arched structures
  • E04B2001/3276 - Panel connection details
  • E04B2001/3288 - Panel frame details

• US Classifications

  • 072 - Metal deforming