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
Expansion and contraction device
摘要
申请公布号
US2244315(A)
申请公布日期
1941.06.03
申请号
US19390281232
申请日期
1939.06.26
申请人
RIDGEWAY GEORGE A
发明人
RIDGEWAY GEORGE A.
分类号
E01C11/12
主分类号
E01C11/12
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Portable conveyor assembly
Apparatus for coating pipe
Control line regulator
Copper base alloys
Pie tamping and perforating mechanism
Connectors for plastic hose
Carton feeding and erecting mechanism
Clay depressant
Fish scaling device
Explosion safety valves, especially for marine engines
Mechanism for tying weavers' knots
SKIING BOOT
Push button switch unit for turn signal indicators
Control apparatus
Preparation of cellular polyester organic polyisocyanate reaction product using amide catalyst
Process of treating the raw juice of agave plant leaves
Process for waterproofing leather
Integrated process of ore reduction and gas generation
Simplified accounting system
Combined lading strap anchor and floor rack holder
