1939546

Information

• Patent Grant
• 1939546

• References
• Source

• Patent Number

  1,939,546

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1933
  90 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
  • G01B2003/1017 - acting on the whole coil

• US Classifications

  • 033 - Geometrical instruments
  • 242 - Winding, tensioning, or guiding