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American Artifacts
Описание: Complete articles are posted from the journal, American Artifacts, on early microscope makers, hand corn shellers, early surveying instruments, a variety of quack medical devices, as well as information on early patents.
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3.0 / 5.0, Sites Like Search
Язык: English
disston saws identifying and dating handsaws
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3.0 / 5.0, Язык: English
Link1Directory.com is a Free Web Directory providing quality resources and best of the internet resources within a comprehensive structure of categories.
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4.4 / 5.0, Язык: English
Ophthalmologist run Eye antiques displays items from our ophthalmic past.Some are for sale.See the antique eye glasses, spectacles,ophthalmoscopes,microscopes and ...
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3.0 / 5.0, Язык: English
Explains how to use the different scales to multiply and divide.
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3.0 / 5.0, Язык: English
Voicenet is an application developer and data integration specialist focusing on the transportation, legal, government services and education industries.
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3.0 / 5.0, Язык: English
Historical and educational links with pictures.
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3.0 / 5.0, Язык: English
State engineering university located in Socorro, New Mexico specializing in science and engineering.
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4.3 / 5.0, Язык: English
The Museum of HP Calculators displays and describes older Hewlett-Packard calculators. There are also sections on calculating machines and slide rules as well as ...
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3.7 / 5.0, Язык: English