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FR953526A - Surveying device - Google Patents

Surveying device

Info

Publication number
FR953526A
FR953526A FR953526DA FR953526A FR 953526 A FR953526 A FR 953526A FR 953526D A FR953526D A FR 953526DA FR 953526 A FR953526 A FR 953526A
Authority
FR
France
Prior art keywords
surveying device
surveying
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
French (fr)
Inventor
Paul-Marie-Alfred Allaire
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 filed Critical
Application granted granted Critical
Publication of FR953526A publication Critical patent/FR953526A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2236—Polarised relays comprising pivotable armature, pivoting at extremity or bending point of armature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/12—Measuring wheels

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnets (AREA)
FR953526D 1946-09-27 1947-09-26 Surveying device Expired FR953526A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US699678A US2502811A (en) 1946-09-27 1946-09-27 Polarized relay

Publications (1)

Publication Number Publication Date
FR953526A true FR953526A (en) 1949-12-07

Family

ID=24810413

Family Applications (1)

Application Number Title Priority Date Filing Date
FR953526D Expired FR953526A (en) 1946-09-27 1947-09-26 Surveying device

Country Status (4)

Country Link
US (1) US2502811A (en)
ES (1) ES179849A1 (en)
FR (1) FR953526A (en)
GB (1) GB632271A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2659652A (en) * 1950-07-18 1953-11-17 Eastman Kodak Co High-speed multiplex recording apparatus
US2654831A (en) * 1950-11-09 1953-10-06 Gen Railway Signal Co Railway signaling system
US2809284A (en) * 1952-12-05 1957-10-08 Gen Railway Signal Co Railway switch machine control circuit
US2900581A (en) * 1954-07-27 1959-08-18 Gen Railway Signal Co Mechanically resonant decoding apparatus
US2872547A (en) * 1957-05-29 1959-02-03 Edward J Diebold High-speed electromagnetic switch

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1335119A (en) * 1920-03-30 Holding means for magnets
US2221618A (en) * 1940-11-12 Laminated magnet
US1790671A (en) * 1931-02-03 Sylvania
US2437270A (en) * 1943-11-05 1948-03-09 Bell Telephone Labor Inc Magnetostrictive compressional wave transmitter or receiver
BE482649A (en) * 1944-06-26

Also Published As

Publication number Publication date
ES179849A1 (en) 1947-11-01
GB632271A (en) 1949-11-18
US2502811A (en) 1950-04-04

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