FR21299E - Spark plugs for internal combustion engines - Google Patents

Spark plugs for internal combustion engines

Info

Publication number
FR21299E
FR21299E FR21299A FR21299DA FR21299E FR 21299 E FR21299 E FR 21299E FR 21299 A FR21299 A FR 21299A FR 21299D A FR21299D A FR 21299DA FR 21299 E FR21299 E FR 21299E
Authority
FR
France
Prior art keywords
internal combustion
combustion engines
spark plugs
spark
plugs
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
FR21299A
Other languages
French (fr)
Inventor
Joseph-Marie-Etienne Franc
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 filed Critical
Application granted granted Critical
Publication of FR21299E publication Critical patent/FR21299E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/46—Sparking plugs having two or more spark gaps
    • H01T13/467—Sparking plugs having two or more spark gaps in parallel connection
FR21299A 1918-04-12 1918-04-12 Spark plugs for internal combustion engines Expired FR21299E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR21299T 1918-04-12

Publications (1)

Publication Number Publication Date
FR21299E true FR21299E (en) 1920-08-05

Family

ID=8660335

Family Applications (1)

Application Number Title Priority Date Filing Date
FR21299A Expired FR21299E (en) 1918-04-12 1918-04-12 Spark plugs for internal combustion engines

Country Status (1)

Country Link
FR (1) FR21299E (en)

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