首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
Ear defender
摘要
申请公布号
US2801423(A)
申请公布日期
1957.08.06
申请号
US19560589549
申请日期
1956.06.05
申请人
NATIONAL RESEARCH COUNCIL
发明人
SHAW EDGAR ALBERT GEORGE;THIESSEN GEORGE JACOB
分类号
A61F11/14
主分类号
A61F11/14
代理机构
代理人
主权项
地址
您可能感兴趣的专利
CASE FOR CONNECT ELECTRIC CABLES
SYSTEM AND METHOD FOR TATTOO REMOVAL
RADIOGRAPHIC IMAGE DETECTING DEVICE
METHOD OF MANUFACTURING A PHOTOMASK, PHOTOMASK, PATTERN TRANSFER METHOD, AND METHOD OF MANUFACTURING A FLAT PANEL DISPLAY
GRIDING DEVICE FOR THIN-PLATE LIKE WORKPIECE AND MANUFACTURING METHOD OF THIN-PLATE LIKE MEMBER
SPEED REDUCTION MECHANISM
METHOD FOR PRESSURE EXTRACTION OF NUCLEIC ACIDS AND DEVICE THEREOF
HYDRAULIC CHAIN RIVETING MACHINE
POINT-TO-POINT PROTOCOL DIALING METHOD AND HOME GATEWAY
CETOENOLES SUSTITUIDOS CON 1,2,4-TRIAZOLILO
METHODS FOR INCREASING EFFICACY OF CD56- BASED THERAPY
ISOLATING CONDUIT FOR A DIELECTRIC FLUID
PAPER HOLDER
INTEGRATED PUFFING AND DRYING MACHINE
PIPETTE CONTAINER EXCLUSIVELY FOR LEAF VEIN-FORM COSMETICS
GAS DISSOLVING DEVICE
GAS DISSOLVING DEVICE
MOTOR
SOCKET JIG IN ROM WRITING APPARATUS
AQUACULTURE METHOD FOR A CYNOGLOSSUS SEMILAEVIS
