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
Perfectionnements aux hauts-parleurs
摘要
申请公布号
FR679871(A)
申请公布日期
1930.04.18
申请号
FRD679871
申请日期
1929.08.05
申请人
发明人
POLLOCK ARCHIBALD FULTON;POLLOCK DAVID ALEXANDER
分类号
H04R3/14
主分类号
H04R3/14
代理机构
代理人
主权项
地址
您可能感兴趣的专利
UNIVERSAL PERFORATION SYSTEM FOR INSTALLATION ON A BINDING OR SPIRAL-BINDING MACHINE CAPABLE OF BINDING USING ANY BINDING SYSTEMS
LOW NOX BURNER APPARATUS AND METHOD
COMPOSITION WITH A CONTINUOUS OIL PHASE CONTAINING AT LEAST ONE LIPOPHILIC ORGANIC UV-SCREENING AGENT AND HYDROPHOBIC SILICA AEROGEL PARTICLES
NOVEL BACTERIOPHAGES
SOLUBLE SOLID HAIR COLORING ARTICLE
BI-DIRECTIONAL OPTICAL COMMUNICATION METHOD AND MULTI-CORE OPTICAL FIBER
CABLE-GATHERING DEVICE (WIRE STACKER)
GEL HAVING IMPROVED THERMAL STABILITY
SELF-BALLASTED APPARATUS FOR SOLAR TRACKING
ORGANIC ELECTRO-LUMINESCENCE DEVICE AND METHOD FOR MANUFACTURING ORGANIC ELECTRO-LUMINESENCE DEVICE
CANDLE WAX COMPRISING A POLYMER AND METHOD FOR MAKING CANDLE WAX
BEVERAGE BOTTLE WITH A RE-SEALABLE CLOSURE HAVING A CAP AND A COLLAR
USER EQUIPMENT, BASE STATIONS, AND METHODS ALLOWING FOR HANDLING OF COLLIDING CHANNEL STATE INFORMATION REPORTS
BOOM CONSTRUCTION, IN PARTICULAR FOR A TRUCK-MOUNTED CONCRETE PUMP, AND TRUCK-MOUNTED CONCRETE PUMP
PISTON RING WITH A WEAR-RESISTANT COBALT COATING
METHOD AND DEVICE FOR SETTING UPLINK TRANSMISSION POWER IN WIRELESS COMMUNICATION SYSTEM
TREATMENT OF RED BLOOD CELLS
USER INTERFACE INDIRECT INTERACTION
OUTER PACKAGE MATERIAL FOR LITHIUM ION BATTERIES
BATTERY ASSEMBLY WITH FIXING AND THEFT-PROOF FUNCTION
