Pioneer inventions and pioneer patents ; a lecture on patent law delivered to the senior engineering students of Purdue university ... /
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| Format: | Book |
| Language: | English |
| Published: |
Rochester, N. Y. :
Pioneer publishing company,
[1924]
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| Edition: | 2d ed. |
| Subjects: |
| Item Description: | Includes illustrative United States patent specifications with diagrams. |
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| Physical Description: | 152 pages ; 28 cm. |