国家/地区 中国（2）
IPC部 A（2）
IPC大类 A61（2）
IPC小类 A61F（2）
IPC C01B032/186（2）
发明人
公开年 2017（2）
申请年 2017（2）
专利权人

Preparing compact graphene condom comprises e.g. preparing silicon columnar round-head mold of built-in with spiral carbon fiber heat source in the sealed space and polyurethane outer layer.

WANG J

Graphene hearing protector comprises e.g. frame body and two cover body, two cover body set oppositely and connected through frame body, each cover body comprises suspension support and graphene film and suspension support has grid frame.

YANG L, ZHANG J, CAO G, HOU C, LI L