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Wilson Mechanical Instrument Co Inc
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Wilson Mechanical Instrument Co Inc
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Accession number:
A578.002
Record level:
Item
Name/title:
Hardness Tester chart
Production date:
(1940s) {nd}
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Accession number:
A578.003
Record level:
Item
Name/title:
Hardness scales chart
Production date:
1942
See full details
