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US1769153A
(en)
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Rotary blower or pump
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US3398880A
(en)
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Centrifugal fan
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US2321907A
(en)
|
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Blower device
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US3254830A
(en)
|
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Apparatus for varying the air quantity in air distribution chambers
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US3305164A
(en)
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Fans of the cross-flow type
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US1905101A
(en)
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Air conditioner
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PL54674B1
(mo)
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|
|
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US4066383A
(en)
|
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Surface aeration impeller
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US4108580A
(en)
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Attic fans
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US1978277A
(en)
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Multistage pump balancing means
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US3114061A
(en)
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|
Refiner construction
|
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US3739493A
(en)
|
|
Grain drying apparatus
|
|
US2108703A
(en)
|
|
Blower drive and support
|
|
US2975961A
(en)
|
|
Blower unit
|
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BR112019012966B1
(pt)
|
|
Freezer de espiral configurável
|
|
US2932441A
(en)
|
|
Fan
|
|
US4066382A
(en)
|
|
Surface aeration impeller
|
|
US1915058A
(en)
|
|
Antivibration mechanism for blower casings
|
|
US2614501A
(en)
|
|
Screw and centrifugal pump
|
|
US3876344A
(en)
|
|
Counterbalance for rotary engine
|
|
US2038417A
(en)
|
|
Integral fan and fan housing
|
|
US3173607A
(en)
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|
Air pump
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GB911111A
(en)
|
|
Improvements in centrifugal fan assemblies
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|
US1745253A
(en)
|
|
Blower
|
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US2042784A
(en)
|
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Pump
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