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2020 Census 2030 Census American Community Survey (ACS) American Housing Survey (AHS) Annual Business Survey (ABS) Annual Integrated Economic Survey (AIES) Census of Governments County Business Patterns (CBP) Current Population Survey (CPS) Economic Census Household Pulse Survey International Programs Metro and Micro Areas Population Estimates Population Projections Small Area Income and Poverty Statistics of U.S. Businesses Survey of Income and Program Participation (SIPP)
View all library resources Glossary
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1950 Key Punch Machines

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1950 Key Punch Machines

The Census Bureau has a long history of tabulating immense volumes of data. In this photograph, highly skilled technicians clean and maintain some of the hundreds of key punch machines they custom-built at the Census Bureau, in support of the 1950 Census.

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Page Last Revised - January 11, 2022
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