FR690248A - Perfectionnement aux télésitemètres - Google Patents

Perfectionnement aux télésitemètres

Info

Publication number
FR690248A
FR690248A FR690248DA FR690248A FR 690248 A FR690248 A FR 690248A FR 690248D A FR690248D A FR 690248DA FR 690248 A FR690248 A FR 690248A
Authority
FR
France
Prior art keywords
telesitemeters
improvement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
Inventor
Jean-Baptiste Perrin
Andre-Jules Marcelin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anciens Etablissements Barbier Benard and Turenne SA
Original Assignee
Anciens Etablissements Barbier Benard and Turenne SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anciens Etablissements Barbier Benard and Turenne SA filed Critical Anciens Etablissements Barbier Benard and Turenne SA
Application granted granted Critical
Publication of FR690248A publication Critical patent/FR690248A/fr
Expired legal-status Critical Current

Links

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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR690248D 1929-11-12 1929-11-12 Perfectionnement aux télésitemètres Expired FR690248A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR690248T 1929-11-12

Publications (1)

Publication Number Publication Date
FR690248A true FR690248A (fr) 1930-09-17

Family

ID=9028616

Family Applications (1)

Application Number Title Priority Date Filing Date
FR690248D Expired FR690248A (fr) 1929-11-12 1929-11-12 Perfectionnement aux télésitemètres

Country Status (1)

Country Link
FR (1) FR690248A (fr)

Similar Documents

Publication Publication Date Title
FR708933A (fr) Perfectionnements apportés aux sièges
FR695148A (fr) Perfectionnements apportés aux stylographes
FR689473A (fr) Perfectionnements aux micro-téléphones
FR690248A (fr) Perfectionnement aux télésitemètres
FR671120A (fr) Perfectionnement aux radiateurs
FR686733A (fr) Perfectionnement aux gazogènes
FR696388A (fr) Perfectionnements aux tire-roues
FR702822A (fr) Perfectionnements aux télégraphones
FR678778A (fr) Perfectionnement apporté aux manchettes amovibles
FR686320A (fr) Perfectionnement aux patinettes
FR36933E (fr) Perfectionnement aux filtres épaississeurs
FR687000A (fr) Perfectionnements aux étuis
FR678312A (fr) Perfectionnement aux gazogènes
FR665164A (fr) Perfectionnement aux aérocalorifères
FR680562A (fr) Perfectionnement aux boîtes-emballages
FR677356A (fr) Perfectionnement aux norias
FR694496A (fr) Perfectionnement aux couloirs oscillants
FR676547A (fr) Perfectionnements aux filières
FR676978A (fr) Perfectionnements aux filières
FR684795A (fr) Perfectionnement aux malaxeurs
FR676614A (fr) Perfectionnement aux ciseaux
FR693718A (fr) Parasoleil
FR691175A (fr) Perfectionnement aux rhéostats circulaires
FR683161A (fr) Perfectionnement aux filtres épaississeurs
FR673527A (fr) Perfectionnement aux bascules