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
Well pump installation
摘要
申请公布号
US2529062(A)
申请公布日期
1950.11.07
申请号
US19470741383
申请日期
1947.04.14
申请人
WILLIAMS CLIFFORD C
发明人
WILLIAMS CLIFFORD C.
分类号
E21B33/00
主分类号
E21B33/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Fabrication method of semiconductor devices and transparent mask for charged particle beam.
Inhibition of the symptoms of premenstrual syndrome/late luteal phase dysphoric disorder.
COMBINATION MEDICAL DATA, IDENTIFICATION AND HEALTH INSURANCE CARD.
Medical information processing system for supporting diagnosis.
PROCESS FOR MANUFACTURING POWDER INJECTION MOLDED PARTS.
FIBROUS STRUCTURE CONTAINING IMMOBILIZED PARTICULATE MATTER AND PROCESS THEREFOR.
Supermarket shopping trolley
Prodn. of bright-coloured surfactants
Blade construction for saw
Control unit for ancillaries on municipal or winter service vehicles
Form body made from foam material for energy absorption
Leiteranordnung
Wood preservative, esp. for fungus and insect control
Prodn. of lactide from aq. lactic acid
New substrate for hydrolase determn. in diagnosis, histochemistry etc.
Prodn. of coumarin and derivs.
Hair transplanted article prodn. using ultra fine fibre for high tensile strength and durability
Preventing damage to combined form-moulding and stamping machines for
Installation housing for telecomms cable
Apparatus for interleaving preprinted inserts with rotary press output
