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
Perfectionnement aux dispositifs d'appel et d'interconnexion dans les installations téléphoniques utilisant des hauts-parleurs
摘要
申请公布号
FR992324(A)
申请公布日期
1951.10.17
申请号
FRD992324
申请日期
1944.06.16
申请人
发明人
THIELLEMENT RENE-GEORGES-MARIE
分类号
H04M9/00
主分类号
H04M9/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
BUILDING SYSTEM
EXTRUDED THERMOPLASTICS, LIQUID CRYSTALLINE POLYMERS, AND BLENDS THEREOF HAVING A PLANAR MORPHOLOGY
ISOLATION AND SEQUENCE OF THE ACETYL COA:DEACETYLCEPHALOSPORIN ACETYLTRANSFERASE GENE
NOVEL USE OF ORGANIC COMPOUND
SAFETY SYRINGE AND METHOD OF USING SAME
METHOD AND CULTIVATION UNIT FOR PLANT CULTIVATION
ARTIFICIAL EYE-LENS
SURGICAL DEVICE
HYDRAULIC RELEASE OIL TOOL
PSTN/PCN SWITCHING ARRANGEMENT
PERFLUOROALKYLATED DIAMINOMESITYLENE AND POLYIMIDES THEREFROM
ELASTIC CLAMP
N-ARYLHETEROARYLALKYL IMIDAZOL-2-ONE COMPOUNDS FOR TREATMENT OF CIRCULATORY DISORDERS
ANALOGUE AND DIGITAL CONVERTORS
ROAD MARKING METHOD - THE APPLICATION OF RIB PADS
UV CURABLE BLEND COMPOSITIONS AND PROCESSES
Yeast dough prods. - made from fat-free base dough with all fat incorporated later, allowing prodn. of pastries, etc. without preliminary fermentation stage
Work place light housing with lower housing opening - has downwardly open reflector unit supported via rigid support edge, upper housing opening serving for lamp and reflector unit exchange
Wt. compensation system for X=ray appts. - supports appts. when manually moved by motor with intermediate self-locking gearing
VORRICHTUNG ZUR HERSTELLUNG VON KUNSTSTOFF-ROHREN
