3715159

Information

• Patent Grant
• 3715159

• References
• Source

• Patent Number

  3,715,159

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1973
  52 years ago

• CPC

  • G03B27/22 - by stretching over a curved surface

• US Classifications

  • 355 - Photocopying