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
Cement head
摘要
申请公布号
US1974986(A)
申请公布日期
1934.09.25
申请号
US19300440341
申请日期
1930.03.31
申请人
PERKINS CEMENTING, INC.
发明人
FERLIN JOHN J.
分类号
E21B33/05
主分类号
E21B33/05
代理机构
代理人
主权项
地址
您可能感兴趣的专利
EARPLUG HAVING A RESILIENT CORE STRUCTURE
ANGLED FACETS FOR DISPLAY DEVICES
Laser assisted fault localization using two-photon absorption
MEDIDOR DE FLUXO DE PASSAGEM DE NÚCLEO MAGNÉTICO E MÉTODO PARA OPERAR MEDIDORES DE FLUXO DE PASSAGEM DE NÚCLEO MAGNÉTICO
NUTRITIONAL COMPOSITIONS INCLUDING EXOGENOUS VITAMIN K2
NUTRITIONAL COMPOSITIONS FOR MODULATING INFLAMMATION INCLUDING EXOGENOUS VITAMIN K2
DISPOSIÇÃO INTRODUZIDA EM TANQUE METÁLICO DE COMBUSTÍVEL AUTOMOTIVO
ZOOM LENS BARREL ASSEMBLY
DENTIFRICE COMPRISING STANNOUS FLUORIDE PLUS ZINC CITRATE AND LOW LEVELS OF WATER
COMBINATION ALS THERAPY
ANIMAL FEED COMPOSITIONS AND PROCESSES FOR PRODUCING
METHOD AND SYSTEM FOR RAIL VEHICLE RECONFIGURATION
A POSITIONING SYSTEM AND METHOD
SACCHAROMYCES CEREVISIAE STRAINS SUITABLE FOR THE PRODUCTION OF BAKER'S YEASTS WHICH ARE OSMOTOLERANT AND WHICH EXHIBIT INTRINSIC RESISTANCE TO WEAK ORGANIC ACIDS,METHODS FOR THE PREPARATION THEREOF AND USES
METHOD FOR PRODUCING A WATER-SOLUBLE MEDICINAL FORM OF AN ANTIBIOTIC FROM THE GROUP CONSISTING OF RIFAMYCINS,AND COMPOSITION PRODUCED BY SAID METHOD
AUTARKIC ELECTROPNEUMATIC WORKING DEVICE
CONTAINER FOR FOOD AND/OR DRINK TO BE CONSUMED ON THE MOVE AND METHOD FOR MAKING IT
METHODS AND APPARATUS FOR SUBFRAME INTERLACING IN HETEROGENEOUS NETWORKS
Method for operating an electrolytic cell
CU-NI-ZN-MN-ALLOY
