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
METHOD OF LAYING PIPELINES
摘要
申请公布号
PL116174(B2)
申请公布日期
1981.05.30
申请号
PL19790215611
申请日期
1979.05.16
申请人
发明人
分类号
F16L;F16L1/00;F17D;(IPC1-7):F16L1/00
主分类号
F16L
代理机构
代理人
主权项
地址
您可能感兴趣的专利
BLSR NETWORK TRANSMITTER, BLSR NETWORK SYSTEM, AND TRAFFIC OUTPUT CONTROL METHOD AT OUTPUT PATH CHANGEOVER ON OCCURRENCE OF FAULT
COMMUNICATION SYSTEM
AUTHENTICATION SYSTEM FOR AUTHENTICATING ELECTRONIC INFORMATION AND ITS METHOD
DATA TRANSMISSION AND RECEPTION DEVICE
TOP LOAD ANTENNA
ELECTRONIC PART COOLING DEVICE
CVD DEVICE AND MANUFACTURE OF SEMICONDUCTOR DEVICE USING IT
METHOD FOR ADJUSTING BEAM OF PROJECTION OPTICAL SYSTEM AND PROJECTION OPTICAL SYSTEM
CHARGED PARTICLE BEAM EXPOSURE METHOD AND DEVICE THEREFOR
CIRCUIT FOR IMPROVING INPUT NONLINEAR DISTORTION OF BIPOLAR TRANSISTOR
SIGNAL WAVE ARRIVING ANGLE ESTIMATING DEVICE AND ARRAY ANTENNA CONTROLLER
MANUFACTURE OF FILM-LIKE DOUBLE-SIDED CIRCUIT BOARD WITH INTER-SIDE CONNECTOR
SPUTTERING DEVICE
TRANSFORMER
FEMALE CONNECTOR
FRIT LEAKAGE MEASURING DEVICE AND METHOD
BACKLIGHT WIRING MATERIAL
WIRE FOR COMPOUND SUPERCONDUCTING WIRE AND ITS MANUFACTURE
HIGH SPEED DATA TRANSFER SYSTEM FOR DRAM MODULE
RELAY TERMINAL BLOCK
