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Photohead with flashing beam
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Patent number 4,363,539
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Issue date Dec 14, 1982
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Gerber Scientific, Inc.
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Heinz J. Gerber
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G06 - COMPUTING CALCULATING COUNTING
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3881801
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Patent number 3,881,801
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Issue date May 6, 1975
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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3820122
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Patent number 3,820,122
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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2976785
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Patent number 2,976,785
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Issue date Mar 28, 1961
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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2585188
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Patent number 2,585,188
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Issue date Feb 12, 1952
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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2184223
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Patent number 2,184,223
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Issue date Dec 19, 1939
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS