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Electric fan
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Patent number D307470
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Issue date Apr 24, 1990
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Hitachi, Ltd.
-
Toshiyuki Utsuki
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D23 - Environmental heating and cooling
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Electric fan
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Patent number D291486
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Issue date Aug 18, 1987
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Hitachi, Ltd.
-
Shuichi Kouno
-
D23 - Environmental heating and cooling
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Electric fan
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Patent number D291352
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Issue date Aug 11, 1987
-
Hitachi, Ltd.
-
Shuichi Kouno
-
D23 - Environmental heating and cooling
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Electric fan
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Patent number D290997
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Issue date Jul 21, 1987
-
Hitachi, Ltd.
-
Toshiyuki Utsuki
-
D23 - Environmental heating and cooling
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Electric fan
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Patent number D290872
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Issue date Jul 14, 1987
-
Hitachi, Ltd.
-
Shuichi Kouno
-
D23 - Environmental heating and cooling
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Electric fan
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Patent number D276550
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Issue date Nov 27, 1984
-
Hitachi, Ltd.
-
Shuichi Kouno
-
D23 - Environmental heating and cooling