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
Selection system
摘要
申请公布号
US2317471(A)
申请公布日期
1943.04.27
申请号
US19420431237
申请日期
1942.02.17
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
MEAEHAM LARNED A.
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
WORM BALL GEARING
DISTRIBUTOR
CAM MECHANISM
WAVE-TYPE FRICTION VARIABLE-SPEED DRIVE
APPARATUS FOR CONTROLLING COMPRESSOR OUTPUT
POSITIVE DISPLACEMENT HYDRAULIC MACHINE
METHOD AND APPARATUS FOR PLACING CONDUCTORS IN MINE SHAFT
METHOD OF PREPARING EXCAVATION FIELDS
METHOD OF CONSOLIDATING SLOPES
PNEUMATIC CONCRETE PUMP
STEPPING MECHANISM OF EXCAVATOR
MOUNTED ROAD-CONSTRUCTION SOIL-LOOSENING AND MIXING EQUIPMENT
SEALING ARRANGEMENT TO MACHINE FOR HEAT TREATMENT OF FABRICS
METHOD OF PELLETIZING FLUORITE CONCENTRATE
DEVICE FOR SAMPLING AND CONTROL OF MICROBIOLOGICAL LIQUID SAMPLES OF UNIT FOR CULTURING MICROORGANISMS
GLUE
PUTTY COMPOSITION FOR FURNITURE INTARSIA IMITATION
PRESS-COMPOSITION BASED ON HYDROLYZED LIGNIN
PRESS-COMPOSITION BASED ON HYDROLYZED LIGNIN
POLYURETHAN COMPOSITION