国家/地区 世界知识产权组织（2）
IPC部 A（2）
IPC大类 A63（2） C08（2） F42（2）
IPC小类 A63B（2）
IPC
发明人
公开年
申请年
专利权人

Ball used as airsoft ammunition, comprises biodegradable polymer and additives, such as electrostatic charge eliminating additive, density increasing additive, and/or strength/hardness modifying additive added to polymer mass during compounding stage.

VYYRYLAEINEN S

Sporting equipment e.g. fishing rod has several prepreg layers which are applied and pressed together in alternate layers of graphene-resin mixture and fiber cloth and then shaped to form component.

MILLER G, MILLER V, TSENG C K