Trademarks
Two examples per time period:
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1911 - 1930's
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1912 - 1920's
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1916 - 1930's
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1923 - 1924
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1940 - 1951?
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1951 - 1977
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1977 - 1981
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1981 - 1983
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1983 - 1984
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Paper Labels Various Dates
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