FR1572261A - - Google Patents

Info

Publication number
FR1572261A
FR1572261A FR1572261DA FR1572261A FR 1572261 A FR1572261 A FR 1572261A FR 1572261D A FR1572261D A FR 1572261DA FR 1572261 A FR1572261 A FR 1572261A
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FR
France
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
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 FR1572261A publication Critical patent/FR1572261A/fr
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
    • G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28—Modifications for introducing a time delay before switching

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
FR1572261D 1968-03-01 1968-03-01 Expired FR1572261A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR142075 1968-03-01

Publications (1)

Publication Number Publication Date
FR1572261A true FR1572261A (fr) 1969-06-27

Family

ID=8646857

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1572261D Expired FR1572261A (fr) 1968-03-01 1968-03-01

Country Status (1)

Country Link
FR (1) FR1572261A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0353830A2 (fr) * 1988-08-05 1990-02-07 Shell Internationale Researchmaatschappij B.V. Contrôle de formation d'écume dans un dispositif de fermentation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0353830A2 (fr) * 1988-08-05 1990-02-07 Shell Internationale Researchmaatschappij B.V. Contrôle de formation d'écume dans un dispositif de fermentation
EP0353830A3 (fr) * 1988-08-05 1991-04-03 Shell Internationale Researchmaatschappij B.V. Contrôle de formation d'écume dans un dispositif de fermentation

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Legal Events

Date Code Title Description
ST Notification of lapse