FR521093A - Perfectionnements aux signaux lumineux - Google Patents

Perfectionnements aux signaux lumineux

Info

Publication number
FR521093A
FR521093A FR521093A FR521093DA FR521093A FR 521093 A FR521093 A FR 521093A FR 521093 A FR521093 A FR 521093A FR 521093D A FR521093D A FR 521093DA FR 521093 A FR521093 A FR 521093A
Authority
FR
France
Prior art keywords
light signals
signals
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
FR521093A
Other languages
English (en)
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 Generale de Signalisation
Original Assignee
Compagnie Generale de Signalisation
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 Generale de Signalisation filed Critical Compagnie Generale de Signalisation
Application granted granted Critical
Publication of FR521093A publication Critical patent/FR521093A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/20—Sealing-in wires directly into the envelope

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR521093A 1914-03-13 1920-07-26 Perfectionnements aux signaux lumineux Expired FR521093A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US521093XA 1914-03-13 1914-03-13

Publications (1)

Publication Number Publication Date
FR521093A true FR521093A (fr) 1921-07-06

Family

ID=21975529

Family Applications (1)

Application Number Title Priority Date Filing Date
FR521093A Expired FR521093A (fr) 1914-03-13 1920-07-26 Perfectionnements aux signaux lumineux

Country Status (1)

Country Link
FR (1) FR521093A (fr)

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