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HasslerCollection 001
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Forfatter:
National Institute of Standards and Technology
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commons.wikimedia.org
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Public Domain. Gratis til personlig og kommerciel brug. Ingen tilskrivning krævet.
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historie
vægt
historisk
spørgeskema
metres
metrology
skiptag
national bureau of standards
national institute of standards and technology
ferdinand rudolph hassler
history of geodesy
history of the metre
MERE SOM DETTE