3646717

Information

• Patent Grant
• 3646717

• References
• Source

• Patent Number

  3,646,717

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1972
  52 years ago

• CPC

  • E04D1/34 - Fastenings for attaching roof-covering elements to the supporting elements
  • E04D2001/3414 - Metal strips or sheet metal
  • E04D2001/3423 - Nails, rivets, staples or straps piercing or perforating the roof covering material
  • E04D2001/3458 - on the upper or lower transverse edges of the roof covering elements
  • E04D2001/3485 - the fastening means taking hold directly on elements of succeeding rows and fastening them only to each other
  • E04D2001/3491 - made of flexible material

• US Classifications

  • 052 - Static structures