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| 100 | 1 | ⊔ | ‡aSmith, Sigmund L. |
| 245 | 1 | 0 | ‡aGeneral information concerning patents for engineers / ‡cby Sigmund L. Smith. |
| 260 | ⊔ | ⊔ | ‡aTucson, Ariz. : ‡bSturm and Smith, ‡c1974. |
| 300 | ⊔ | ⊔ | ‡a64 p. in various pagings : ‡bill. ; ‡c22 x 29 cm. |
| 500 | ⊔ | ⊔ | ‡aCover-title. |
| 538 | ⊔ | ⊔ | ‡aMode of access: Internet. |
| 650 | ⊔ | 0 | ‡aPatents ‡zUnited States. |
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