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
Railway frog body
摘要
申请公布号
US2335994(A)
申请公布日期
1943.12.07
申请号
US19420452478
申请日期
1942.07.27
申请人
BREED CHARLES W;BURKHARDT GEORGE R
发明人
BREED CHARLES W.;BURKHARDT GEORGE R.
分类号
E01B7/12
主分类号
E01B7/12
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Inductor equivalent circuit and application thereof
Pattern writing apparatus, pattern writing method and substrate
Semiconductor device
In-stent ablative tool
Solid state device with encapsulant of cycloaliphatic epoxy resin, 4-methylhexahydrophthalic anhydride and boron catalyst
Dielectric ceramic composition and electronic device
Electromagnetic induction actuator and portable telecommunications equipment
Rubber composition and pneumatic tire using said rubber composition
Composição de café aromatizada não-aglomerada e processo para preparação da mesma
System for prosessering av sokekallindikator i nedre lag og fremgangsmate for flerlagskommunikasjonsutstyr anvendt i et tradlost kommunikasjonssystem
Composição farmacêutica orodispersìvel de ivabradina
Menetelmä ja laitteisto polttokennojen tehon muokkaamiseksi
Isochronous channel having a linked list of buffers
Métodos para obter melhorada qualidade dos ossos de um vertebrado e para modular a qualidade dos ossos de um vertebrado, uso de glutamato, derivados de glutamato, ou metabólitos, análogos de glutamato ou misturas dos mesmos, e, método para inibir, prevenir ou aliviar a degradação da estrutura óssoa ou enfraquecimento óssea em um vertebrado
Electric heaters.
Gaming machine with persistent feature state.
ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY CONTAINING THE SOLUTION WITH GOOD COATING QUALITY AND PREPARATION METHOD THEREOF
CU-NI-SI ALLOY USED IN MANUFACTURING OF ELECTRONIC COMPONENTS SUCH AS ELECTRONIC MATERIALS, WHICH ARE CHARACTERISTIC OF SUPERIOR STRENGTH AND CONDUCTIVITY AND COMPRISE LEAD FRAME, TERMINAL AND CONNECTOR, AND METHOD FOR MANUFACTURING THE SAME
Mottakerstasjon for CDMA tradlost system og fremgangsmate for denne
Filme de embalagem descolável, processo de preparação, e usos do mesmo
