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
Improvements in or relating to loudspeakers
摘要
申请公布号
GB462397(A)
申请公布日期
1937.03.09
申请号
GB19350026341
申请日期
1935.09.23
申请人
PARMEKO LIMITED;FREDERICK JOHN TOONE
发明人
分类号
H04R7/26
主分类号
H04R7/26
代理机构
代理人
主权项
地址
您可能感兴趣的专利
PRAEFORM TIL BRUG VED BLAESESTOEBNING AF PLASTFLASKER OG FREMGANGSMAADE HERVED
FIBRAS QUE CONTEM LUBRIFICANTE E COMPOSICOES LUBRIFICANTES PARA AS MESMAS
METODO E DISPOSITIVO PARA UNIR ELEMENTOS DE PARADA SUPERIOR E INFERIOR A UMA CADEIA RETENTORA DE FECHO
ELECTRODEPOSITION COATING COMPOSITION
DETERGENT COMPOSITION
AQUEOUS DISPERSION COMPOSITION AND ITS PREPARATION
PREPARATION OF CROSSLINKABLE POLYOLEFIN PARTICLE
WHOLLY AROMATIC POLYETHERESTER
PRODUCTION OF CATALYST
TURNING HYDRAULIC CIRCUIT FOR HYDRAULIC CRANE, ETC.
LAMINATE OF POLYOLEFIN
MANUFACTURE OF COMMODITY PACKING BAG
METHOD OF PUNCHING AND WORKING CERAMIC RAW SHEET
METHOD OF FORMING APPLYING MATERIAL OR DECORATIVE LINING OF PRECIOUS METAL INTO BODY OF NORMAL METAL OR NONPRECIOUS METAL
TREATMENT OF WASTE WATER CONTAINING TRACE AMOUNT OF OIL
MODULE DEVICE FOR INJECTING LIQUID
METHOD AND DEVICE FOR COATING ONE SURFACE OF ENDLESS STRIP
CONTINUOUS TYPE GRANULAR BODY WASHING MACHINE
TREATMENT OF ORGANIC SOLVENT
BENZOXAZINE DERIVATIVES
