1857721

Information

• Patent Grant
• 1857721

• References
• Source

• Patent Number

  1,857,721

• Date Filed

  Not available

• Date Issued

  Tuesday, May 10, 1932
  93 years ago

• CPC

  • G03B27/02 - Exposure apparatus for contact printing
  • Y10S165/136 - Movable belt or strip transfers heat to or from objects or material thereon

• US Classifications

  • 165 - Heat exchange
  • 062 - Refrigeration
  • 101 - Printing