FR853504A - Improvements to electric indicator lamps - Google Patents

Improvements to electric indicator lamps

Info

Publication number
FR853504A
FR853504A FR853504DA FR853504A FR 853504 A FR853504 A FR 853504A FR 853504D A FR853504D A FR 853504DA FR 853504 A FR853504 A FR 853504A
Authority
FR
France
Prior art keywords
indicator lamps
electric indicator
electric
lamps
indicator
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.)
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
Original Assignee
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
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 Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH filed Critical Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
Application granted granted Critical
Publication of FR853504A publication Critical patent/FR853504A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/14—Magic-eye or analogous tuning indicators
FR853504D 1938-04-28 1939-04-26 Improvements to electric indicator lamps Expired FR853504A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE853504X 1938-04-28

Publications (1)

Publication Number Publication Date
FR853504A true FR853504A (en) 1940-03-21

Family

ID=6788176

Family Applications (1)

Application Number Title Priority Date Filing Date
FR853504D Expired FR853504A (en) 1938-04-28 1939-04-26 Improvements to electric indicator lamps

Country Status (1)

Country Link
FR (1) FR853504A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2829294A (en) * 1952-04-26 1958-04-01 Philips Corp Cathode ray tuning indicator tube
DE973132C (en) * 1940-07-23 1959-12-10 Standard Elek K Lorenz Ag Voltage comparison indicator tubes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973132C (en) * 1940-07-23 1959-12-10 Standard Elek K Lorenz Ag Voltage comparison indicator tubes
US2829294A (en) * 1952-04-26 1958-04-01 Philips Corp Cathode ray tuning indicator tube

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