Samuel and Thomas Keefer pioneers of Canadian engineering

From National Research Council Canada

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LanguageEnglish
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IdentifierDBR-TP-278
NRC numberNRCC 10330
NRC-IRC-2486
NPARC number20374437
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Record identifierddc89fd0-4b2b-4c10-91ca-c500512807fa
Record created2012-07-23
Record modified2020-06-06
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