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.)
Publication of NL256424ApublicationCriticalpatent/NL256424A/xx
G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
G05B11/00—Automatic controllers
G05B11/01—Automatic controllers electric
G05B11/012—Automatic controllers electric details of the transmission means
G05B11/017—Automatic controllers electric details of the transmission means using photo-electric means
C—CHEMISTRY; METALLURGY
C03—GLASS; MINERAL OR SLAG WOOL
C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
C03C8/10—Frit compositions, i.e. in a powdered or comminuted form containing lead
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Engineering & Computer Science
(AREA)
Chemical & Material Sciences
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Chemical Kinetics & Catalysis
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Automation & Control Theory
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Life Sciences & Earth Sciences
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General Physics & Mathematics
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Physics & Mathematics
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General Chemical & Material Sciences
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Geochemistry & Mineralogy
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Materials Engineering
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Organic Chemistry
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Glass Compositions
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Adjustable Resistors
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Measuring Instrument Details And Bridges, And Automatic Balancing Devices
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