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
Résonateur destiné à corriger le timbre et l'intensité des sons transmis ou émis par des amplificateurs, haut-parleurs, etc.
摘要
申请公布号
FR784836(A)
申请公布日期
1935.07.25
申请号
FRD784836
申请日期
1935.01.02
申请人
发明人
DUCLOS JEAN JOHANNES
分类号
H04R1/28
主分类号
H04R1/28
代理机构
代理人
主权项
地址
您可能感兴趣的专利
BEHANDLUNG VON MIGRAENE MIT TROPYLBENZOATEN.
A PROCESS OF MANUFACTURE OF A SOLID FOAM FLOAT
METHOD OF MAKING A COMPOSITION FOR MOISTURISING,CLEANSING AND CONDITIONING HUMAN SKIN TISSUE
METHOD FOR THE PREPARATION OF AN ANILINOFUMARATE
A LIQUIFIED PETROLEUM GAS STOVE
PROCESS FOR ASSEMBLING COMPONENTS
NUTRIENT SOLUTION FOR HYDROPONICS HENNA GROWING
SYRINGE HOLDER
CLEANING COMPOSITION WITH 1,1-DICHLORO-1-FLUOROETHANE, METHYLENE CHLORIDE AND METHANOL
METHOD OF HYDROTHERMAL TREATMENT OF GROATS FOR PRODUCTION OF FOOD CONCENTRATES
FOERFARANDE OCH ANORDNING FOER STABILISERING OCH FOERENKLING AV MASSMATNINGSSYSTEMET I EN PAPPERSMASKIN.
RENGOERINGSSAMMANSAETTNINGAR BASERADE PAO 1,1-DIKLOR-1-FLUORETAN, METYLENKLORID OCH METANOL.
METHOD AND APPARATUS FOR IMPROVING THE TREATMENT OF A GAS CONTAINING FIBER SUSPENSION
POLYMERISATION PROCESSES
APPARATUS PAINTING THE INTERNAL SIDE OF FUNNEL WITH THE GRAPHITE
PROCESS FOR THE PREPARATION OF REACTIVE METAL FORMAZAN COMPOUND
MULTI-LAYERED CONTAINER
METHOD AND APPARATUS FOR INTERNAL LASER TREATMENT OF PIPE
VACUUM TUBE
METHOD FOR CHECKING SHAPE OF CONCAVE ELLIPTIC SURFACES
