Patents for inventions abridgment of specification 3000 - 35000 / patent office, Govt. of India.
Material type:
TextLanguage: English Publication details: Delhi : Govt. Press, 1957.Description: 27 p. ; 24 cmDDC classification: - 608.754
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National Library of India Annexe Reading Room & Stack Division | Government Publications | G. P. 608.754 In2pp (Browse shelf(Opens below)) | Available |
Total holds: 0
Group II. - Sanitation (1) Closets, baths and like sanitari applicances.(2) Drains and Sewers.(3)Sewage, treatment of.(4)Water and unspecificafied liquids, purifying and sottenry.
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