FR521927A - Gas saving device - Google Patents

Gas saving device

Info

Publication number
FR521927A
FR521927A FR521927A FR521927DA FR521927A FR 521927 A FR521927 A FR 521927A FR 521927 A FR521927 A FR 521927A FR 521927D A FR521927D A FR 521927DA FR 521927 A FR521927 A FR 521927A
Authority
FR
France
Prior art keywords
saving device
gas saving
gas
saving
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
FR521927A
Other languages
French (fr)
Inventor
Zbigniew Kowalski
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.)
ZBIGNIEW KOWALSKI
Original Assignee
ZBIGNIEW KOWALSKI
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 ZBIGNIEW KOWALSKI filed Critical ZBIGNIEW KOWALSKI
Application granted granted Critical
Publication of FR521927A publication Critical patent/FR521927A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/01—Control of flow without auxiliary power
    • G05D7/018—Control of flow without auxiliary power using rotary sensing element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
FR521927A 1920-08-04 1920-08-04 Gas saving device Expired FR521927A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR521927T 1920-08-04

Publications (1)

Publication Number Publication Date
FR521927A true FR521927A (en) 1921-07-21

Family

ID=8917549

Family Applications (1)

Application Number Title Priority Date Filing Date
FR521927A Expired FR521927A (en) 1920-08-04 1920-08-04 Gas saving device

Country Status (1)

Country Link
FR (1) FR521927A (en)

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