FR486759A - Improvement in the manufacture of incandescent lamps - Google Patents

Improvement in the manufacture of incandescent lamps

Info

Publication number
FR486759A
FR486759A FR486759A FR486759DA FR486759A FR 486759 A FR486759 A FR 486759A FR 486759 A FR486759 A FR 486759A FR 486759D A FR486759D A FR 486759DA FR 486759 A FR486759 A FR 486759A
Authority
FR
France
Prior art keywords
improvement
manufacture
incandescent lamps
incandescent
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
FR486759A
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR486759A publication Critical patent/FR486759A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
    • H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
    • H01K1/56—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering characterised by the material of the getter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Resistance Heating (AREA)
  • Nonmetallic Welding Materials (AREA)
FR486759A 1917-03-16 1915-11-30 Improvement in the manufacture of incandescent lamps Expired FR486759A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH489759X 1917-03-16

Publications (1)

Publication Number Publication Date
FR486759A true FR486759A (en) 1918-05-08

Family

ID=34361568

Family Applications (2)

Application Number Title Priority Date Filing Date
FR486759A Expired FR486759A (en) 1917-03-16 1915-11-30 Improvement in the manufacture of incandescent lamps
FR489759A Expired FR489759A (en) 1917-03-16 1918-04-16 Manufacturing process of hollow poles with polygonal section in reinforced concrete

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR489759A Expired FR489759A (en) 1917-03-16 1918-04-16 Manufacturing process of hollow poles with polygonal section in reinforced concrete

Country Status (4)

Country Link
DE (2) DE302821C (en)
FR (2) FR486759A (en)
GB (1) GB191511544A (en)
NL (1) NL9080C (en)

Also Published As

Publication number Publication date
NL9080C (en)
GB191511544A (en) 1916-08-10
DE302821C (en)
DE302824C (en)
FR489759A (en) 1919-03-11

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