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
Verfahren und Vorrichtung zur Ermittlung des Vorzeichens der Differenz von zwei Frequenzen periodischer Funktionen, ins-besondere zur Fernregelung oder -messung
摘要
申请公布号
DE936762(C)
申请公布日期
1955.12.22
申请号
DE1952E006138
申请日期
1952.10.11
申请人
ELECTRICITE DE FRANCE
发明人
CHEVALIER ANDRE;HOLLEVILLE MICHEL
分类号
G05B1/02
主分类号
G05B1/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
PAPER DOCUMENT COMPUTERIZING SYSTEM AND PAPER DOCUMENT COMPUTERIZING METHOD
STEERING COLUMN LOCK DEVICE HAVING PUSH-RELEASE FUNCTION
COMMUNICATION METHOD
DEVICE FOR MEASURING SINGLE TERAHERTZ WAVE TIME WAVEFORM
IMAGING APPARATUS, IMAGING SYSTEM, IMAGING METHOD, PROGRAM AND RECORDING MEDIUM
STREAM REPRODUCING APPARATUS
CONNECTION STRUCTURE OF WIRING BODY
ELECTRONIC COMPONENT
THIN-FILM TRANSISTOR
MANUFACTURING METHOD OF GROOVED BAR AND MANUFACTURING METHOD OF SEMICONDUCTOR PACKAGE USING THE METHOD
ADHESIVE ACCELERATING AGENT FOR ADHESION OF FLUORINE POLYMER LAYER IN MULTI-LAYERED ARTICLE
FLAME-RETARDANT RESIN COMPOSITION FOR USE IN PRINTED CIRCUIT BOARD, AND PRINTED CIRCUIT BOARD USING IT
SYSTEM OF HEATING COOKING, AND HEATING COOKER
CONNECTION STRUCTURE
IMAGE FORMATION APPARATUS AND IMAGE FORMATION METHOD
SONIC TOOTHBRUSH
EYE STATE DETECTOR, AND EYE STATE DETECTOR MOUNTING METHOD
BACKING PLATE FOR BORING, AND BORING METHOD
METHOD FOR PRODUCING COPPER NANOPARTICLE, AND COPPER NANOPARTICLE PRODUCED THEREBY
SPEED REDUCTION AND DAMPING METHOD AND DEVICE
