FR443631A - Mothball indicator apparatus for illumination gas - Google Patents

Mothball indicator apparatus for illumination gas

Info

Publication number
FR443631A
FR443631A FR443631A FR443631DA FR443631A FR 443631 A FR443631 A FR 443631A FR 443631 A FR443631 A FR 443631A FR 443631D A FR443631D A FR 443631DA FR 443631 A FR443631 A FR 443631A
Authority
FR
France
Prior art keywords
mothball
indicator apparatus
illumination gas
illumination
gas
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
FR443631A
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.)
GAZ DE PARIS
Original Assignee
GAZ DE PARIS
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 GAZ DE PARIS filed Critical GAZ DE PARIS
Application granted granted Critical
Publication of FR443631A publication Critical patent/FR443631A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/14—Investigating or analyzing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation
    • G01N25/142—Investigating or analyzing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation by condensation

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
FR443631A 1912-05-09 1912-05-09 Mothball indicator apparatus for illumination gas Expired FR443631A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR443631T 1912-05-09

Publications (1)

Publication Number Publication Date
FR443631A true FR443631A (en) 1912-09-28

Family

ID=88242554

Family Applications (1)

Application Number Title Priority Date Filing Date
FR443631A Expired FR443631A (en) 1912-05-09 1912-05-09 Mothball indicator apparatus for illumination gas

Country Status (2)

Country Link
FR (1) FR443631A (en)
NL (1) NL1076C (en)

Also Published As

Publication number Publication date
NL1076C (en) 1916-02-01

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