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
Stuffing box
摘要
申请公布号
US1904631(A)
申请公布日期
1933.04.18
申请号
US19300492839
申请日期
1930.11.01
申请人
ROYE FORREST C
发明人
ROYE FORREST C.
分类号
E21B33/08;F16J15/18
主分类号
E21B33/08
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Throttle control apparatus
Locking structure of waterproof connector
Passenger airbag module deployment door attachment system
Coupling devices
Porous plug structure for aluminum furances
Backseat assembly for an expanding gate valve
Method and apparatus for discharging liquid through a nozzle having a hood
Vehicle for fabricating frames for buildings
Bottle for containing a fluid
Dual belt conveyor with product isolation
Emergency brake system for wheeled vehicles
Fireplace rack
Oil drainage device
Floatable cooler device
Omni-directional railguns
Method for angularly positioning an adjustable sealing device relative to a flexible dispensing tube comprising indicia
Rolling method for metal slab
Automatic buckling device
Thread frame for forming a pattern
Cable end compressor
