国家/地区 中国（3）
IPC部 A（3） C（3）
IPC大类 A63（3）
IPC小类 A63B（3）
IPC
发明人
公开年 2021（2）
申请年 2021（2） 
专利权人

Portable breathing training device, has clamping seat whose outer surface is sleeved with balloon main body, and hollow rod whose outer surface is formed with thread groove, where outer surface of thread groove is connected with limiting plate.

TENG S

Scribing paint comprises paint coating comprising polyurethane paint, epoxy resin paint or acrylic resin paint, and conductive material comprising solid conductive material or liquid conductive material.

WU Z, WANG Z, XU J

Fabricating graphene table tennis bat three-ply substrate comprises e.g. providing graphene oxide, reacting graphene oxide with a base, subjecting to nucleophilic substitution reaction, applying and covering surface with second substrate.

WU X, ZHANG L, SUN S