3827646

Information

• Patent Grant
• 3827646

• References
• Source

• Patent Number

  3,827,646

• Date Filed

  Not available

• Date Issued

  Tuesday, August 6, 1974
  50 years ago

• CPC

  • G03D3/14 - with means for taking into account of elongation or contraction of films
  • B65H20/24 - by looping or like devices

• US Classifications

  • 242 - Winding, tensioning, or guiding