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1.
Grant and validity of British patents for inventions / by James Roberts by
Material type: Text Text; Format: print ; Literary form: Not fiction
Language: English
Publication details: London : John Murray, 1903
Availability: Items available for loan: National Library of India (1)Call number: 147 E 917.

2.
The grant and validity of British patents for inventions / James Roberts by
Material type: Text Text; Format: print ; Literary form: Not fiction
Language: English
Publication details: London : John Murray, 1903
Availability: Items available for loan: National Library of India (1)Call number: 608/ R 542..

                                                                           
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