1845550

Information

• Patent Grant
• 1845550

• References
• Source

• Patent Number

  1,845,550

• Date Filed

  Not available

• Date Issued

  Tuesday, February 16, 1932
  93 years ago

• CPC

  • H03J1/12 - Friction drive

• US Classifications

  • 242 - Winding, tensioning, or guiding
  • 040 - Card, picture, or sign exhibiting
  • 281 - Books, strips, and leaves