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3428159
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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2984328
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Patent number 2,984,328
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Issue date May 16, 1961
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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2965211
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Patent number 2,965,211
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Issue date Dec 20, 1960
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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2219371
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Patent number 2,219,371
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Issue date Oct 29, 1940
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS