FR792092A - Improvements to devices operating in the warm-up state and, in particular, to electronic lamps - Google Patents

Improvements to devices operating in the warm-up state and, in particular, to electronic lamps

Info

Publication number
FR792092A
FR792092A FR792092DA FR792092A FR 792092 A FR792092 A FR 792092A FR 792092D A FR792092D A FR 792092DA FR 792092 A FR792092 A FR 792092A
Authority
FR
France
Prior art keywords
warm
state
devices operating
electronic lamps
lamps
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie 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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR792092A publication Critical patent/FR792092A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/42—Measurement or testing during manufacture
FR792092D 1934-08-06 1935-07-06 Improvements to devices operating in the warm-up state and, in particular, to electronic lamps Expired FR792092A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE792092X 1934-08-06

Publications (1)

Publication Number Publication Date
FR792092A true FR792092A (en) 1935-12-21

Family

ID=6705963

Family Applications (1)

Application Number Title Priority Date Filing Date
FR792092D Expired FR792092A (en) 1934-08-06 1935-07-06 Improvements to devices operating in the warm-up state and, in particular, to electronic lamps

Country Status (2)

Country Link
FR (1) FR792092A (en)
NL (1) NL42729C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740370A (en) * 1954-10-29 1956-04-03 Gen Electric Electrical device with temperature indicator
US2860302A (en) * 1954-06-28 1958-11-11 Philips Corp Life indicator for high voltage tubes
US2872586A (en) * 1955-08-15 1959-02-03 Jack & Heintz Inc Elapsed time indicator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860302A (en) * 1954-06-28 1958-11-11 Philips Corp Life indicator for high voltage tubes
US2740370A (en) * 1954-10-29 1956-04-03 Gen Electric Electrical device with temperature indicator
US2872586A (en) * 1955-08-15 1959-02-03 Jack & Heintz Inc Elapsed time indicator

Also Published As

Publication number Publication date
NL42729C (en)

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