Patents at a glance : survey of substantive law and formalities in 45 countries /
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| 格式: | 图书 |
| 语言: | English German |
| 出版: |
Munich, :
C. Heymanns,
1964.
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| Item Description: | Translated from the 2nd revised and expanded German edition of "Patent-Tabelle" and supplemented by E.H. Sheppard. |
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| 实物描述: | 42 p. ; 21 x 30 cm. |