Thomas Alva Edison, bringer of light
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| Main Author: | |
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| Format: | Book |
| Published: |
Chicage
Childrens Press
1985
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| Series: | People of distinction biographies
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| Subjects: | |
| Online Access: | Click Here to View Status and Holdings. |
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Thomas Alva Edison
How to invent and protect your invention a guide to patents for scientists and engineers
