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
Highway-railway crossing safety barrier
摘要
申请公布号
US2553780(A)
申请公布日期
1951.05.22
申请号
US19460717423
申请日期
1946.12.20
申请人
NICHOLAS MURPHY ROBERT
发明人
MURPHY ROBERT NICHOLAS
分类号
B61L29/04
主分类号
B61L29/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
MULTI-GRADATION PHOTOMASK, METHOD FOR MANUFACTURING MULTI-GRADATION PHOTOMASK AND PATTERN TRANSFER METHOD
METHOD FOR CUTTING FILM AND CUTTER FOR THE SAME
PORTABLE INFORMATION PROCESSING APPARATUS, PROCESSING METHOD, AND PROGRAM
SOLAR CELL BACKSHEET AND SOLAR CELL MODULE PROVIDED WITH SAME
SOLAR CELL MODULE AND LIGHT SOURCE MODULE
FILLER SELECTION SUPPORT SYSTEM, FILLER SELECTION SUPPORT METHOD, AND FILLER SELECTION SUPPORT PROGRAM
DRIED GINGER AND METHOD FOR PRODUCING THE SAME
LAUNDRY SERVICE VENDING MACHINE
ENVIRONMENTAL LOAD EVALUATION DEVICE, METHOD, AND PROGRAM
ENVIRONMENTAL INFORMATION PRODUCING APPARATUS, PROGRAM, AND ENVIRONMENTAL INFORMATION PRODUCING METHOD
METHOD OF PRINTING BOOK BASED ON DIGITAL DATA
NONVOLATILE SEMICONDUCTOR STORAGE DEVICE
WATER-ABSORBING AGGREGATE AND METHOD FOR MANUFACTURING THE SAME
METHOD FOR MODIFYING CROSSLINKED POLYMER
COATING DEVICE
FLUID SOUNDNESS EVALUATING APPARATUS AND DIESEL ENGINE FUEL SOUNDNESS CONTROL SYSTEM
INDUCTION HEATING COOKER
INDUCTION HEATING COOKER
TRANSISTOR ELEMENT AND METHOD OF MANUFACTURING THE SAME
PHONEME CODE CORRECTING DEVICE, PHONEME CODE DATABASE, AND VOICE SYNTHESIZER
