FR638777A - Improvements to light tubes - Google Patents

Improvements to light tubes

Info

Publication number
FR638777A
FR638777A FR638777DA FR638777A FR 638777 A FR638777 A FR 638777A FR 638777D A FR638777D A FR 638777DA FR 638777 A FR638777 A FR 638777A
Authority
FR
France
Prior art keywords
light tubes
tubes
light
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.)
RAINBOW LIGHT Inc
Original Assignee
RAINBOW LIGHT Inc
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 RAINBOW LIGHT Inc filed Critical RAINBOW LIGHT Inc
Application granted granted Critical
Publication of FR638777A publication Critical patent/FR638777A/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
    • H01J61/30—Vessels; Containers
    • H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings
FR638777D 1926-10-20 1927-08-03 Improvements to light tubes Expired FR638777A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US142839A US1689146A (en) 1926-10-20 1926-10-20 Neon tube

Publications (1)

Publication Number Publication Date
FR638777A true FR638777A (en) 1928-06-02

Family

ID=22501496

Family Applications (1)

Application Number Title Priority Date Filing Date
FR638777D Expired FR638777A (en) 1926-10-20 1927-08-03 Improvements to light tubes

Country Status (3)

Country Link
US (1) US1689146A (en)
FR (1) FR638777A (en)
GB (1) GB279391A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419128A (en) * 1942-02-14 1947-04-15 Westinghouse Electric Corp Mercury vapor tube
US2440832A (en) * 1945-05-29 1948-05-04 Pennybacker Miles Gas discharge lamp

Also Published As

Publication number Publication date
US1689146A (en) 1928-10-23
GB279391A (en) 1928-10-22

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