1819989

Information

• Patent Grant
• 1819989

• References
• Source

• Patent Number

  1,819,989

• Date Filed

  Not available

• Date Issued

  Tuesday, August 18, 1931
  93 years ago

• CPC

  • B65H18/028 - Both ends type
  • B29D30/0016 - Handling tyres or parts thereof
  • B65H18/021 - Multiple web roll supports
  • B65H18/103 - Reel-to-reel type web winding and unwinding mechanisms
  • B29L2030/007 - Sidewalls
  • B65H2301/4127 - with interleaf layer
  • B65H2301/414324 - involving interleaf web/sheet
  • B65H2301/4148 - slitting
  • B65H2801/93 - Tyres

• US Classifications

  • 242 - Winding, tensioning, or guiding