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United States. Patent Office
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United States. Patent Office
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United States. Office of War Mobilization and Reconversion
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United States. Post Office Department
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United States. Office of Noise Abatement
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United States. President's Office of Science and Technology
United States. Public Health Service
United States. Public Health Service. Alcohol, Drug Abuse and Mental Health Administration
United States. Public Health Service. Office of Pesticides
United States. Railroad Administration -- Bibliography
United States. Securities and Exchange Commission
United States. Senate
