1688646

Information

• Patent Grant
• 1688646

• References
• Source

• Patent Number

  1,688,646

• Date Filed

  Not available

• Date Issued

  Tuesday, October 23, 1928
  96 years ago

• CPC

  • B41C3/00 - Reproduction or duplicating of printing formes
  • Y10S76/03 - Casting

• US Classifications

  • 101 - Printing
  • 076 - Metal tools and implements, making