BS: 89 - Part 1 - 1990; Direct Acting Indicating Analogue Electrical Measuring Instruments and their Accessories Part 1 Specification for defenitions and General Requirements Common to all Parts

BS: 89 - Part 1 - 1990; Direct Acting Indicating Analogue Electrical Measuring Instruments and their Accessories Part 1 Specification for defenitions and General Requirements Common to all Parts - London BSI 1990 - 40p

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