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
Portable apparatus for transmitting audio signals to a person
摘要
申请公布号
GB2041695(A)
申请公布日期
1980.09.10
申请号
GB19790004353
申请日期
1979.02.07
申请人
WALKER J
发明人
分类号
A61F11/04;H04R11/00;H04R25/00;(IPC1-7):H04R25/00
主分类号
A61F11/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
DENTAL CROWN
CORRUGATED PALLET
PURIFIED THERMOSTABLE NUCLEIC ACID POLYMERASE ENZYME FROM TERMOTOGA MARITIMA
METHOD AND APPARATUS FOR EXTRACTING FLUID AND RELATED METHOD AND APPARATUS FOR PRESERVING BLOOD FLUID
METHOD OF MAKING REDUCED OIL CONTENT FRIED CHIP PRODUCTS AND PRODUCT THEREOF
AIR BAG
ATOMIC POWER GENERATION SYSTEM AND ITS CONSTRUCTION METHOD
FIBER AGGREGATES USEFUL AS MOULDING OR PADDING MATERIAL FOR TEXTILES, SUCH AS COVERS, CLOTHES OR THE LIKE
SYSTEM AND METHOD FOR SPRITE CONTROL BLOCK STRUCTURE
ANCROD-LIKE PROTEINS, THEIR PREPARATION AND THEIR USE
COATED ARTICLES, METHOD AND APPARATUS FOR MAKING SAME
LIFT CABIN ARRESTER
BAG FOR SOLID LOOSE MATERIALS
DEVICE FOR PRESSING HOLLOW GLASS PRODUCTS
RAW STOCK FOR PRODUCING CONSTRUCTION MATERIALS
PROCESS FOR PRODUCTION OF SULFURIC ACID
EQUALIZER SUSPENSION OF TRACKED VEHICLE
DEVICE FOR AUTOMATIC CONTROL OF INDEXING MECHANISM
DRAW-AND-BUFFER GEAR OF RAIL VEHICLE
INTRUSION ALARM DEVICE FOR VEHICLE
