Patents. A guide to inventors, manufacturers and merchants, who seek to secure and maintain patents for inventions, trade marks and copyrights
Автор: Briesen, A[rthur] von. [from old catalog],United States. Laws, statutes, etc. [from old catalog], издатель: "Книга по требованию", ISBN: 978-5-8820-2813-7| В наличии: | ||||
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4 из 5, 7 голос(-ов).