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
Automatic train-signaling device for level crossings
摘要
申请公布号
US1775675(A)
申请公布日期
1930.09.16
申请号
US19300428175
申请日期
1930.02.13
申请人
SOCIETE D'AVERTISSEUR FERROVOIE
发明人
GHERASSIMOFF NICOLAS
分类号
B61L29/28
主分类号
B61L29/28
代理机构
代理人
主权项
地址
您可能感兴趣的专利
WORKING DEVICE AND METHOD
Protected Communications Vending Machine System
PNEUMATIC TUBE CARRIER TRACKING SYSTEM
WIRE ELECTRIC DISCHARGE MACHINE CONTROLLER, WIRE ELECTRIC DISCHARGE MACHINE, AND WIRE ELECTRIC DISCHARGE MACHINING METHOD
Control Module for Deposition of Optical Thin Films
SEWING DESIGN MANUFACTURING MANAGEMENT APPARATUS AND METHOD
METHOD AND APPARATUS FOR AUTONOMOUS TOOL PARAMETER IMPACT IDENTIFICATION SYSTEM FOR SEMICONDUCTOR MANUFACTURING
METHOD AND SYSTEM FOR THE DYNAMIC ALLOCATION OF PROGRAM FUNCTIONS IN DISTRIBUTED CONTROL SYSTEMS
ACTIVE HUMAN-MACHINE INTERFACE WITH FORCE SENSOR OVERLOAD PROTECTION
IN-BONE IMPLANTABLE SHAFT FOR PROSTHETIC JOINTS OR FOR DIRECT SKELETAL ATTACHMENT OF EXTERNAL LIMB PROSTHESES AND METHOD OF ITS INSTALLATION
ELBOW PROSTHESIS AND METHOD FOR USE
Breast Reconstruction Device and Methods
INFUSION BAG
TECHNICAL CAP FOR METHOD OF PRODUCTION OF FIZZY AND SPARKLING WINE IN BOTTLE
LIQUID RESIN MOLDING APPARATUS
STABILIZED HYPOHALOUS ACID SOLUTIONS
PORTABLE DEVICE AND METHOD OF OUTPUTTING NOTIFICATION SOUND
PHARMACEUTICAL COMPOSITIONS
ANTIFUNGAL COMPOSITIONS WITH IMPROVED BIOAVAILABILITY
DELIVERY PARTICLE
