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1852600
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Patent number 1,852,600
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Issue date Apr 5, 1932
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F27 - FURNACES KILNS OVENS RETORTS
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1760694
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Patent number 1,760,694
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Issue date May 27, 1930
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F27 - FURNACES KILNS OVENS RETORTS
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1732844
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Patent number 1,732,844
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Issue date Oct 22, 1929
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F27 - FURNACES KILNS OVENS RETORTS
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1732843
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Patent number 1,732,843
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Issue date Oct 22, 1929
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F27 - FURNACES KILNS OVENS RETORTS
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1687935
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Patent number 1,687,935
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Issue date Oct 16, 1928
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F27 - FURNACES KILNS OVENS RETORTS
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1669925
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Patent number 1,669,925
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F27 - FURNACES KILNS OVENS RETORTS
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1542150
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Patent number 1,542,150
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Issue date Jun 16, 1925
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F27 - FURNACES KILNS OVENS RETORTS
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1538794
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Patent number 1,538,794
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F27 - FURNACES KILNS OVENS RETORTS
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1535160
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Patent number 1,535,160
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Issue date Apr 28, 1925
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F27 - FURNACES KILNS OVENS RETORTS
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1506942
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Patent number 1,506,942
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F27 - FURNACES KILNS OVENS RETORTS
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1468216
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Patent number 1,468,216
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F27 - FURNACES KILNS OVENS RETORTS
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1465416
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Patent number 1,465,416
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F27 - FURNACES KILNS OVENS RETORTS
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1460658
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Patent number 1,460,658
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F27 - FURNACES KILNS OVENS RETORTS
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1444209
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Patent number 1,444,209
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F27 - FURNACES KILNS OVENS RETORTS
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1353422
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F27 - FURNACES KILNS OVENS RETORTS
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1206960
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F27 - FURNACES KILNS OVENS RETORTS
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1206961
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Issue date Dec 5, 1916
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F27 - FURNACES KILNS OVENS RETORTS
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1203613
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F27 - FURNACES KILNS OVENS RETORTS
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1191848
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F27 - FURNACES KILNS OVENS RETORTS
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1187504
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Patent number 1,187,504
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F27 - FURNACES KILNS OVENS RETORTS
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1164130
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Patent number 1,164,130
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F27 - FURNACES KILNS OVENS RETORTS
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1100461
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F27 - FURNACES KILNS OVENS RETORTS
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1094953
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Patent number 1,094,953
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F27 - FURNACES KILNS OVENS RETORTS
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1085419
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Patent number 1,085,419
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F27 - FURNACES KILNS OVENS RETORTS
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1080586
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Patent number 1,080,586
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F27 - FURNACES KILNS OVENS RETORTS
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1079405
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Patent number 1,079,405
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F27 - FURNACES KILNS OVENS RETORTS
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1068955
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Patent number 1,068,955
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F27 - FURNACES KILNS OVENS RETORTS
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976175
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Patent number 976,175
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F27 - FURNACES KILNS OVENS RETORTS
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940537
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Patent number 940,537
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Issue date Nov 16, 1909
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F27 - FURNACES KILNS OVENS RETORTS