2150502

Information

• Patent Grant
• 2150502

• References
• Source

• Patent Number

  2,150,502

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1939
  86 years ago

• CPC

  • G03B7/00 - Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
  • G01R1/02 - General constructional details
  • G01R13/08 - Electromechanical recording systems using a mechanical direct-writing method
  • G01R17/02 - Arrangements in which the value to be measured is automatically compared with a reference value
  • H01C10/24 - the contact moving along turns of a helical resistive element, or vica versa
  • Y10T74/1828 - Cam, lever, and slide
  • Y10T74/19647 - Parallel axes or shafts
  • Y10T74/2136 - Pivoted pawls
  • Y10T74/22 - Miscellaneous

• US Classifications

  • 346 - Recorders
  • 074 - Machine element or mechanism
  • 192 - Clutches and power-stop control
  • 236 - Automatic temperature and humidity regulation