873 resultados para National Measurement System for Time and Frequency.
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Mode of access: Internet.
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Includes bibliographical references (p. 100-103).
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Bibliography: p. 45.
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Spine title: Detection of inflammable gas and vapour.
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Includes bibliographical references.
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Mode of access: Internet.
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Cover title.
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Mode of access: Internet.
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Mode of access: Internet.
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Cover-title.
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"Presented at the 44th Annual Conference of the Water Pollution Control Federation, San Francisco, California (October, 1971)"--P. 1.
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Mode of access: Internet.
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Mode of access: Internet.
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"May 30, 1995"--Letter of transmittal.
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Mode of access: Internet.