3378974

Information

• Patent Grant
• 3378974

• References
• Source

• Patent Number

  3,378,974

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1968
  56 years ago

• CPC

  • E04B9/248 - by means of permanent magnetic force held against the underside of the supporting construction
  • E04F13/0801 - Separate fastening elements
  • E04F13/0883 - by magnets
  • Y10S52/04 - Magnetic connecting means for building components
  • Y10S55/06 - Magnetic couplings
  • Y10S428/90 - Magnetic feature
  • Y10T428/163 - Next to unitary web or sheet of equal or greater extent

• US Classifications

  • 052 - Static structures
  • 055 - Gas separation
  • 428 - Stock material or miscellaneous articles