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Pantograph machine
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Patent number 4,863,318
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Issue date Sep 5, 1989
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Hash; Kathleen M.
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Peter M. Pearl
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B44 - DECORATIVE ARTS
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Engraving apparatus
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Patent number 4,591,304
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Issue date May 27, 1986
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Philip L. Samis
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B44 - DECORATIVE ARTS
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3927599
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Patent number 3,927,599
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Issue date Dec 23, 1975
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B44 - DECORATIVE ARTS
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3555961
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Patent number 3,555,961
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Issue date Jan 19, 1971
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3460433
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Patent number 3,460,433
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Issue date Aug 12, 1969
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3289538
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Patent number 3,289,538
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Issue date Dec 6, 1966
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2635340
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Patent number 2,635,340
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Issue date Apr 21, 1953
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2583653
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Patent number 2,583,653
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Issue date Jan 29, 1952
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2506264
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Patent number 2,506,264
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Issue date May 2, 1950
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2240825
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Patent number 2,240,825
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Issue date May 6, 1941
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B44 - DECORATIVE ARTS
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2185011
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Patent number 2,185,011
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Issue date Dec 26, 1939
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1925036
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Patent number 1,925,036
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Issue date Aug 29, 1933
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B44 - DECORATIVE ARTS
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1617312
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Patent number 1,617,312
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Issue date Feb 8, 1927
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B44 - DECORATIVE ARTS
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1472034
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Patent number 1,472,034
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Issue date Oct 30, 1923
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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1351211
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Patent number 1,351,211
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Issue date Aug 31, 1920
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1274270
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Patent number 1,274,270
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Issue date Jul 30, 1918
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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921736
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Patent number 921,736
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Issue date May 18, 1909
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B44 - DECORATIVE ARTS
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888041
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Patent number 888,041
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Issue date May 19, 1908
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B44 - DECORATIVE ARTS
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790328
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Patent number 790,328
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Issue date May 23, 1905
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR