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
Improvements in or relating to projectiles for gun perforators
摘要
申请公布号
GB679347(A)
申请公布日期
1952.09.17
申请号
GB19510008836
申请日期
1951.04.16
申请人
SCHLUMBERGER OVERSEAS, S.A.
发明人
DUBOST PIERRE
分类号
E21B43/116
主分类号
E21B43/116
代理机构
代理人
主权项
地址
您可能感兴趣的专利
BALAI D'ESSUIE-GLACE POUR LE NETTOYAGE DES GLACES D'UN VEHICULE AUTOMOBILE.
Technetium-99m labeled dioxime complexes
PROCESSO PARA GRAVAR E APAGAR INFORMACAO EM UM SUPORTE OPTICO E DISPOSITIVO DE ARMAZENAMENTO OPTICO PARA A EXECUCAO DESTE PROCESSO
DETECTEUR PHOTO-SENSIBLE
SYSTEME DE MARQUAGE
NOUVELLES COMPOSITIONS AQUEUSES CONCENTREES POUR LA PRODUCTION DE MOUSSE EXTINCTRICE LEUR OBTENTION ET LEURS APPLICATIONS
METHOD FOR THE PURIFICATION OF PARASITE ANTIGENIC FACTORS
ELECTRICAL LAMINATED BOARD
CHANGE SPEED OPERATING APPARATUS FOR A TRACTOR
PROCESS FOR PRODUCING OPTICALLY ACTIVE ARYLOXYPROPIONIC ACIDS AND DERIVATIVES THEREOF
CHROMA SIGNAL AMPLITUDE CONTROL APPARATUS
REDUCED-NOISE CCD CAMERA WITH SINGLE-SAMPLED OUTPUT
STUD WELDING APPARATUS WITH TWO WIRE CONTROL
BRACKET FOR AN EDDY CURRENT PROBE
APPARATUS FOR THE RECLAMATION OF SLURRY FROM THE BOTTOM OF A STORAGE SILO
PROCESS FOR THE MANUFACTURE OF METHYL T-BUTYL ETHER
Methods of desulfurizing gases
Optical smoke detectors
Apparatus for relief illusion
Fluid pressure brake control portion
