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Heat treatment apparatus
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Patent number 10,866,029
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Issue date Dec 15, 2020
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Koyo Thermo Systems Co., Ltd.
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Ryosuke Yamamoto
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F27 - FURNACES KILNS OVENS RETORTS
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Heat retaining means
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Patent number 5,033,926
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Issue date Jul 23, 1991
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Encomech Engineering Services Limited
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William R. Laws
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Heat retaining means
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Patent number 4,736,608
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Issue date Apr 12, 1988
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Encomech Engineering Services Limited
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William R. Laws
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3869051
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Patent number 3,869,051
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Issue date Mar 4, 1975
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F27 - FURNACES KILNS OVENS RETORTS
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3827583
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Patent number 3,827,583
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Issue date Aug 6, 1974
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C21 - METALLURGY OF IRON
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3760960
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Patent number 3,760,960
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F27 - FURNACES KILNS OVENS RETORTS
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3648861
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Patent number 3,648,861
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Issue date Mar 14, 1972
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent number 3,443,701
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Issue date May 13, 1969
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F27 - FURNACES KILNS OVENS RETORTS
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3427009
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Patent number 3,427,009
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F27 - FURNACES KILNS OVENS RETORTS
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3393811
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B28 - WORKING CEMENT, CLAY, OR STONE
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3147107
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Issue date Sep 1, 1964
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F27 - FURNACES KILNS OVENS RETORTS
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3080158
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F27 - FURNACES KILNS OVENS RETORTS
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2972312
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F27 - FURNACES KILNS OVENS RETORTS
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2936911
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C21 - METALLURGY OF IRON
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2815135
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Patent number 2,815,135
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F27 - FURNACES KILNS OVENS RETORTS
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2807456
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F27 - FURNACES KILNS OVENS RETORTS
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2656055
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F27 - FURNACES KILNS OVENS RETORTS
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2579409
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F27 - FURNACES KILNS OVENS RETORTS
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2506797
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F27 - FURNACES KILNS OVENS RETORTS
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2485018
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Patent number 2,485,018
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Issue date Oct 18, 1949
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F27 - FURNACES KILNS OVENS RETORTS