1657172

Information

• Patent Grant
• 1657172

• References
• Source

• Patent Number

  1,657,172

• Date Filed

  Not available

• Date Issued

  Tuesday, January 24, 1928
  97 years ago

• CPC

  • B44C3/025 - Superimposing layers to produce ornamental relief structures
  • Y10S264/54 - Processes in making insulators
  • Y10T156/1044 - of parallel stacked sheets only
  • Y10T156/1075 - of plural laminae from single stock and assembling to each other or to additional lamina

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 264 - Plastic and nonmetallic article shaping or treating: processes