3833974

Information

• Patent Grant
• 3833974

• References
• Source

• Patent Number

  3,833,974

• Date Filed

  Not available

• Date Issued

  Tuesday, September 10, 1974
  50 years ago

• CPC

  • D06B23/047 - Replacing or removing the core of the package
  • Y10T29/53652 - Tube and coextensive core

• US Classifications

  • 029 - Metal working
  • 028 - Textiles: manufacturing
  • 242 - Winding, tensioning, or guiding