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Deutsches Reichs-Patent | |||
deutsche patent | |||
German Patent; Deutsches Reichs-Patent (German patent) | |||
DRP Deutsches Reichs-Patent (Germany Patent) | |||
Germany patent | |||
German Patent (GP) | |||
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German Patent |
德 国 专利 : 4 phrases in 2 subjects |
Economy | 1 |
General | 3 |