3802639

Information

• Patent Grant
• 3802639

• References
• Source

• Patent Number

  3,802,639

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1974
  50 years ago

• CPC

  • B65H19/2276 - The web roll being driven by a winding mechanism of the coreless type
  • B65H19/2207 - the web roll being driven by a winding mechanism of the centre or core drive type
  • B65H2301/41446 - removing roll/core from shaft/mandrel
  • B65H2701/1846 - Parts concerned
  • Y10S242/908 - Fluid treatment or handling

• US Classifications

  • 242 - Winding, tensioning, or guiding