3444354

Information

• Patent Grant
• 3444354

• References
• Source

• Patent Number

  3,444,354

• Date Filed

  Not available

• Date Issued

  Tuesday, May 13, 1969
  55 years ago

• CPC

  • G03B27/306 - Heat development
  • G03B27/22 - by stretching over a curved surface

• US Classifications

  • 219 - Electric heating
  • 200 - Electricity: circuit makers and breakers
  • 250 - Radiant energy