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2704660
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Patent number 2,704,660
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Issue date Mar 22, 1955
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F27 - FURNACES KILNS OVENS RETORTS
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2685439
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Patent number 2,685,439
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Issue date Aug 3, 1954
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F27 - FURNACES KILNS OVENS RETORTS
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2169163
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Patent number 2,169,163
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Issue date Aug 8, 1939
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F27 - FURNACES KILNS OVENS RETORTS
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2152491
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Patent number 2,152,491
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Issue date Mar 28, 1939
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F27 - FURNACES KILNS OVENS RETORTS
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2040472
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Patent number 2,040,472
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Issue date May 12, 1936
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F27 - FURNACES KILNS OVENS RETORTS
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1909048
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Patent number 1,909,048
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Issue date May 16, 1933
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F27 - FURNACES KILNS OVENS RETORTS
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1906789
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Patent number 1,906,789
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Issue date May 2, 1933
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F27 - FURNACES KILNS OVENS RETORTS
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1901079
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Patent number 1,901,079
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Issue date Mar 14, 1933
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F27 - FURNACES KILNS OVENS RETORTS
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1881057
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Patent number 1,881,057
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Issue date Oct 4, 1932
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F27 - FURNACES KILNS OVENS RETORTS
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1873093
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Patent number 1,873,093
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Issue date Aug 23, 1932
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F27 - FURNACES KILNS OVENS RETORTS
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1838541
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Patent number 1,838,541
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Issue date Dec 29, 1931
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F27 - FURNACES KILNS OVENS RETORTS
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1798618
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Patent number 1,798,618
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Issue date Mar 31, 1931
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F27 - FURNACES KILNS OVENS RETORTS
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1798611
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Patent number 1,798,611
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Issue date Mar 31, 1931
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F27 - FURNACES KILNS OVENS RETORTS
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1786829
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Patent number 1,786,829
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Issue date Dec 30, 1930
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F27 - FURNACES KILNS OVENS RETORTS
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1785549
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Patent number 1,785,549
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Issue date Dec 16, 1930
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F27 - FURNACES KILNS OVENS RETORTS
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1769493
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Patent number 1,769,493
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Issue date Jul 1, 1930
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F27 - FURNACES KILNS OVENS RETORTS
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1769496
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Patent number 1,769,496
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Issue date Jul 1, 1930
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F27 - FURNACES KILNS OVENS RETORTS
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1769209
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Patent number 1,769,209
-
Issue date Jul 1, 1930
-
F27 - FURNACES KILNS OVENS RETORTS
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1769210
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Patent number 1,769,210
-
Issue date Jul 1, 1930
-
F27 - FURNACES KILNS OVENS RETORTS
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1769842
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Patent number 1,769,842
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Issue date Jul 1, 1930
-
F27 - FURNACES KILNS OVENS RETORTS
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1769826
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Patent number 1,769,826
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Issue date Jul 1, 1930
-
F27 - FURNACES KILNS OVENS RETORTS
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1769866
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Patent number 1,769,866
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Issue date Jul 1, 1930
-
F27 - FURNACES KILNS OVENS RETORTS
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1769211
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Patent number 1,769,211
-
Issue date Jul 1, 1930
-
F27 - FURNACES KILNS OVENS RETORTS
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1769494
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Patent number 1,769,494
-
Issue date Jul 1, 1930
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F27 - FURNACES KILNS OVENS RETORTS
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1769495
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Patent number 1,769,495
-
Issue date Jul 1, 1930
-
F27 - FURNACES KILNS OVENS RETORTS
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1769678
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Patent number 1,769,678
-
Issue date Jul 1, 1930
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F27 - FURNACES KILNS OVENS RETORTS
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1769362
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Patent number 1,769,362
-
Issue date Jul 1, 1930
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F27 - FURNACES KILNS OVENS RETORTS
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1769366
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Patent number 1,769,366
-
Issue date Jul 1, 1930
-
F27 - FURNACES KILNS OVENS RETORTS
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1769446
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Patent number 1,769,446
-
Issue date Jul 1, 1930
-
F27 - FURNACES KILNS OVENS RETORTS
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1768583
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Patent number 1,768,583
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Issue date Jul 1, 1930
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F27 - FURNACES KILNS OVENS RETORTS