4. Tools and hardware
  5. Tools and implements for agriculture, forestry and horticulture

Steven Chang

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Archery arrow sighting apparatus

Mechanical guns and projectors – Spring – Bow
Patent

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Arrow sighting and support apparatus

Mechanical guns and projectors – Element – Projectile holder or carrier
Patent

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Automatic dual bobbin mechanism

Sewing – Elements – Bobbin winding
Patent

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Candlestick

Lighting – Candle holder – Plural – i.e. – candelabrum – etc.
Patent

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Cooking apparatus employing centrally located heat source

Electric heating – Heating devices – With heater-unit housing – casing – or support means
Reexamination Certificate

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Profile ID: LFUS-PAI-P-360694

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