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Headwear
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Patent number 11,758,961
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Issue date Sep 19, 2023
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Shigematsu Co., Ltd
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Yoshikatsu Shigematsu
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A42 - HEADWEAR
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Clutch mechanism
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Patent number 7,516,825
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Issue date Apr 14, 2009
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Shigematsu Co.
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Takeshi Shigematsu
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Clutch mechanism
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Patent number 7,428,955
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Issue date Sep 30, 2008
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Shigematsu Co.
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Takeshi Shigematsu
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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