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| 100 | 1 | _aRamachandran, R. | |
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_aPatent information services in India : _bcontributions of patent offices and patent information systems |
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_aIndien _91967 |
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_aPatentdokumentation _93575 |
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_ain. WPI. 11(1989),4,211-216. _wz_WPI |
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