Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
  • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
  • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
  • G01S3/04—Details
  • G01S3/12—Means for determining sense of direction, e.g. by combining signals from directional antenna or goniometer search coil with those from non-directional antenna
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
  • B61G5/00—Couplings for special purposes not otherwise provided for
  • B61G5/02—Couplings for special purposes not otherwise provided for for coupling articulated trains, locomotives and tenders or the bogies of a vehicle; Coupling by means of a single coupling bar; Couplings preventing or limiting relative lateral movement of vehicles

Applications Claiming Priority (1)

Publications (1)

Family

ID=23601886

Family Applications (1)

Country Status (3)

Families Citing this family (1)

• 0
  • BE BE405522D patent/BE405522A/xx unknown
• 1941
  • 1941-08-01 US US404998A patent/US2313047A/en not_active Expired - Lifetime
• 1946
  • 1946-03-27 FR FR941227D patent/FR941227A/fr not_active Expired

Also Published As

Similar Documents