FR658896A - Electric discharge tube - Google Patents

Electric discharge tube

Info

Publication number
FR658896A
FR658896A FR658896DA FR658896A FR 658896 A FR658896 A FR 658896A FR 658896D A FR658896D A FR 658896DA FR 658896 A FR658896 A FR 658896A
Authority
FR
France
Prior art keywords
electric discharge
discharge tube
tube
electric
discharge
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR658896A publication Critical patent/FR658896A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J61/28—Means for producing, introducing, or replenishing gas or vapour during operation of the lamp
FR658896D 1927-08-12 1928-08-10 Electric discharge tube Expired FR658896A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL37951A NL24785C (en) 1927-08-12 1927-08-12

Publications (1)

Publication Number Publication Date
FR658896A true FR658896A (en) 1929-06-20

Family

ID=10183634

Family Applications (1)

Application Number Title Priority Date Filing Date
FR658896D Expired FR658896A (en) 1927-08-12 1928-08-10 Electric discharge tube

Country Status (4)

Country Link
DE (1) DE509825C (en)
FR (1) FR658896A (en)
GB (1) GB301412A (en)
NL (1) NL24785C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770524A (en) * 1987-01-21 1988-09-13 Stanfield James S Slide projection system for coplanar stored slides

Also Published As

Publication number Publication date
NL24785C (en) 1931-09-15
DE509825C (en) 1930-10-13
GB301412A (en) 1928-11-29

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