FR698604A - Stroboscopic apparatus for measuring distances and depths underwater and similar applications - Google Patents

Stroboscopic apparatus for measuring distances and depths underwater and similar applications

Info

Publication number
FR698604A
FR698604A FR698604DA FR698604A FR 698604 A FR698604 A FR 698604A FR 698604D A FR698604D A FR 698604DA FR 698604 A FR698604 A FR 698604A
Authority
FR
France
Prior art keywords
similar applications
measuring distances
stroboscopic apparatus
depths underwater
underwater
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)
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.)
Submarine Signal Co
Original Assignee
Submarine Signal Co
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 Submarine Signal Co filed Critical Submarine Signal Co
Application granted granted Critical
Publication of FR698604A publication Critical patent/FR698604A/en
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
FR698604D 1929-07-29 1930-07-04 Stroboscopic apparatus for measuring distances and depths underwater and similar applications Expired FR698604A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US381971A US2028174A (en) 1929-07-29 1929-07-29 Distance and depth finding

Publications (1)

Publication Number Publication Date
FR698604A true FR698604A (en) 1931-02-02

Family

ID=23507046

Family Applications (1)

Application Number Title Priority Date Filing Date
FR698604D Expired FR698604A (en) 1929-07-29 1930-07-04 Stroboscopic apparatus for measuring distances and depths underwater and similar applications

Country Status (4)

Country Link
US (1) US2028174A (en)
DE (1) DE558234C (en)
FR (1) FR698604A (en)
GB (1) GB350286A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6705459B1 (en) * 1998-02-17 2004-03-16 General Kinematics Corporation Two-way vibratory feeder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755455A (en) * 1953-01-27 1956-07-17 Gen Precision Lab Inc Depth sounder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6705459B1 (en) * 1998-02-17 2004-03-16 General Kinematics Corporation Two-way vibratory feeder

Also Published As

Publication number Publication date
DE558234C (en) 1932-09-20
GB350286A (en) 1931-06-11
US2028174A (en) 1936-01-21

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