US1205332A
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Portable hover.
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US1053262A
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Hover.
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US1042635A
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Heating system for incubators.
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US990345A
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Heater.
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US982229A
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Thermostatic controller for fluid-heating systems.
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US978990A
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Heater for incubators and brooders.
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US967173A
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Heater for brooders and incubators.
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US961667A
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Heater for brooders and incubators.
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US985514A
|
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Incubator-heater.
|
US938271A
|
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Metallic incubator.
|
US989127A
|
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Hover for poultry.
|
US953310A
|
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Incubator-heater.
|
US970311A
|
|
Incubator.
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US931142A
|
|
Incubator.
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US859923A
|
|
Electrical condenser.
|
US985983A
|
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Electric heater for incubators, brooders, and the like.
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US931712A
|
|
Oil-lamp.
|
US912818A
|
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Lamp-burner attachment.
|
US934986A
|
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Multiple-compartment incubator.
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US938200A
|
|
Incubator.
|