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Pakistan. Patent Office.
Identifiers
Open Library
OL178184A
Top Subjects
Pakistan (2)
Patents -- Classification (1)
Patents -- Pakistan (1)
Patent laws and legislation -- Pakistan (1)
Books by Pakistan. Patent Office.
Total count: 2
Classification key of patents for inventions
list of headings arranged alphabetically 1953.
Manager of Publications
1955-01-01
Patent office hand book
2d ed.
Manager of Publications
1962-01-01