FR386270A - Device for indicating the presence of foreign gases in atmospheric air - Google Patents

Device for indicating the presence of foreign gases in atmospheric air

Info

Publication number
FR386270A
FR386270A FR386270DA FR386270A FR 386270 A FR386270 A FR 386270A FR 386270D A FR386270D A FR 386270DA FR 386270 A FR386270 A FR 386270A
Authority
FR
France
Prior art keywords
indicating
atmospheric air
foreign gases
foreign
gases
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)
Inventor
Wilhelm Otto
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR386270A publication Critical patent/FR386270A/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
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/10—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials

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)
FR386270D 1908-01-16 1908-01-16 Device for indicating the presence of foreign gases in atmospheric air Expired FR386270A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR386270T 1908-01-16

Publications (1)

Publication Number Publication Date
FR386270A true FR386270A (en) 1908-06-09

Family

ID=1432088

Family Applications (1)

Application Number Title Priority Date Filing Date
FR386270D Expired FR386270A (en) 1908-01-16 1908-01-16 Device for indicating the presence of foreign gases in atmospheric air

Country Status (1)

Country Link
FR (1) FR386270A (en)

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