
1940 U.S. Patents:
Household
Last Update: 07/01/01 11:55:17 PM
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122,779 |
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122,944 |
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122,949 |
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418,149 |
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2,210,006 |
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2,210,036 |
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2,210,603 |
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2,210,623 |
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2,210,810 |
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2,210,944 |
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2,212,328 |
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2,212,477 |
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2,212,889 |
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2,212,978 |
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2,213,032 |
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2,213,483 |
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