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Artifact and Historical Materials


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  • TAPES AT THE BUREAU OF STANDARDS
    TAPES AT THE BUREAU OF STANDARDS
    The “newton”unit of force used in engineering calculations
    The “newton”unit of force used in e...
    The draft of CNS Mark for selection.
    The draft of CNS Mark for selection...
  • TPW Maintenance Bath
    TPW Maintenance Bath
    Vollziehungsverordnung Betreffend amtlichePrüfung und Stempelung von Gasmessern
    Vollziehungsverordnung Betreffend ...
    WHAT ABOUT METRIC？
    WHAT ABOUT METRIC？
  • X-ray diffractometer
    X-ray diffractometer
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