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US3644707A
(en)
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Safety heater for pressure dispensed product
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US1464255A
(en)
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Electrical heating device
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US2039641A
(en)
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Immersion heater
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US1974302A
(en)
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Self-protecting immersion unit
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US2304211A
(en)
|
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Liquid level responsive means
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GB2232245A
(en)
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Shape memory metal actuator for a regulation device
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PL20108B1
(OSRAM)
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|
|
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US1715687A
(en)
|
|
Thermostatically-controlled fluid heater
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US1862065A
(en)
|
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Electric water heater
|
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US2038476A
(en)
|
|
Water heater
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|
US2170681A
(en)
|
|
Glue pot
|
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US2480470A
(en)
|
|
Thermostatically controlled bath
|
|
US2009218A
(en)
|
|
Gaseous electric discharge device
|
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US2064248A
(en)
|
|
Electric heating attachment for |
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US1355644A
(en)
|
|
Electric water-heater
|
|
US2039030A
(en)
|
|
Electric water heating system
|
|
US1033799A
(en)
|
|
Electric heater.
|
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US2218999A
(en)
|
|
Electric heater
|
|
US1259371A
(en)
|
|
Cooling system.
|
|
US2254330A
(en)
|
|
Electric immersion heater
|
|
US2573483A
(en)
|
|
Switch for use with battery chargers
|
|
US1369702A
(en)
|
|
Electric heating system
|
|
US1124548A
(en)
|
|
Electric heating attachment for radiators.
|
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US1676921A
(en)
|
|
Electrical apparatus
|
|
US2680224A
(en)
|
|
Standard sources of electromotive force
|