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
Combined anvil and driftpin
摘要
申请公布号
US2292520(A)
申请公布日期
1942.08.11
申请号
US19390296448
申请日期
1939.09.25
申请人
EIDCO, INCORPORATED
发明人
HOKANSON MARTIN
分类号
E21B19/18
主分类号
E21B19/18
代理机构
代理人
主权项
地址
您可能感兴趣的专利
SILICON-CARBIDE-ENCASED GRAPHITE ARTICLES AND THEIR PRODUCTION
SELF-THREAD-FORMING FASTENER WITH EASY THREAD PICKUP
PREPARATION OF ELASTOMERIC FILAMENTS
METHOD AND APPARATUS FOR REINFORCING CELLULAR FOAM MOLD
PROCESS FOR PREPARING SUBSTITUTED ALKENOIC ACIDS
PREPARATION OF TRIALKYL OXONIUM HEXAFLUOROPHOSPHATES, HEXAFLUOROARSENATES AND HEXAFLUOROANTIMONATES
ESTERS
METHOD OF OBTAINING A NEW DIHYDRAZINIC DERIVATIVE HAVING ANTITUBERCULOUS ACTION
PREPARATION OF 6-AZAURIDINE
USE OF 2,3,4,5,6 PENTACHLORO-1-NITROBENZENE AS A CONTROL FOR STRIP SMUT
PROCESS FOR MANUFACTURING HOLLOW OBJECTS FROM LAMINATED MATERIAL
SURFACE LAYING MACHINE
NITROIMIDAZOLOYL DERIVATIVES AND METHOD OF PREPARING
COLOR PHOTOGRAPHIC ELEMENTS AND PROCESS
CHASSIS CONSTRUCTION FOR GROUND-SUPPORT VEHICLE
SHEET CONVEYOR SYSTEM
SAFETY CLOSURE FOR HIGH PRESSURE GAS TANKS
COMBINED SEED AND FERTILISER DRILLS FOR AGRICULTURAL USE
TRACK SHUNTING SYSTEM FOR MOVABLE PARTS FOLLOWING A GUIDING TRACK
RAILWAY TRAILER HITCH
