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Helically wound heater
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Patent number 4,272,639
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Issue date Jun 9, 1981
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BTU Engineering Corporation
-
Jacob H. Beck
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Anchored coil heater
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Patent number 4,091,355
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Issue date May 23, 1978
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BTU Engineering Corporation
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Jacob Howard Beck
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H01 - BASIC ELECTRIC ELEMENTS
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Silicon carbide heater
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Patent number 4,080,510
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Issue date Mar 21, 1978
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BTU Engineering Corporation
-
Jacob Howard Beck
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Electric furnace heater
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Patent number 4,011,395
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Issue date Mar 8, 1977
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BTU Engineering Company
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Jacob Howard Beck
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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High temperature furnace heater
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Patent number 3,984,616
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Issue date Oct 5, 1976
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BTU Engineering Corporation
-
Jacob Howard Beck
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Electrical resistance furnace heater
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Patent number 3,984,615
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Issue date Oct 5, 1976
-
BTU Engineering Corporation
-
Jacob Howard Beck
-
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR