3731389

Information

• Patent Grant
• 3731389

• References
• Source

• Patent Number

  3,731,389

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1973
  51 years ago

• CPC

  • G01B3/1005 - Braking or locking members, i.e. means for preventing rotation or the tape or for holding the tape at a certain position; Damping means, i.e. means for absorbing shock due to rewinding of the tape; Winding mechanisms
  • B43K29/08 - with measuring, computing or indicating devices
  • G01B2003/1017 - acting on the whole coil
  • G01B2003/1038 - by translatory motion operation
  • G01B2003/1046 - external shape; elements for generating an offset
  • G01B2003/1064 - Windows
  • G01B2003/1089 - for drawing, marking, cutting

• US Classifications

  • 033 - Geometrical instruments