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
Timed intermitter
摘要
申请公布号
US2328841(A)
申请公布日期
1943.09.07
申请号
US19410375158
申请日期
1941.01.21
申请人
O'LEARY CHARLES M
发明人
O'LEARY CHARLES M.
分类号
E21B43/12
主分类号
E21B43/12
代理机构
代理人
主权项
地址
您可能感兴趣的专利
PHOTO-ASSISTED CVD
SUBSTITUTED 5-TRIFLUOROMETHYL-1,3,4-THIADIAZOL-2-YL-OXYACETIC ACID AMIDES,A PROCESS FOR THEIR PREPARATION AND THEIR USE AS HERBICIDES
COMPOUNDS HAVING ANTINEOPLASTIC ACTIVITY,PROCESS FOR THE PREPARATION THEREOF AND PHARMACEUTICAL COMPOSITIONS THEREFROM
A METHOD OF MANUFACTURING A SHOE AND A THROUGH FOR USE IN SUCH METHOD
PROTECTIVE CIRCUIT BREAKER ARRANGEMENT,SUITABLE FOR USE AS AN ADVANCE AUTOMATIC CUT-OUT
PRE-FABRICATED ELEMENT
PHOSPHORAMIDOTHIONATE,AND THEIR PRODUCTION AND USE
METHOD AND APPARATUS FOR AUTOMATICALLY THREADING SEPARABLE SLIDE FASTENER STRINGERS THROUGH SLIDERS
THE USE OF QUINOLINE DERIVATIVES FOR THE PROTECTION OF CULTIVATED PLANTS
BUILDING PANEL
BUILDING PANEL,AND MOULD THEREFOR
HITCH LEVELING LINKAGE
SUPPORT FRAME
AN INTERLOCKING PAVING STONE
DIGITAL GAIN CONTROL SYSTEM
METHOD FOR PREPARING COLOR-FREE,STABILIZED POLYMERS OF CONJUGATED DIENES OR VINYL AROMATIC HYDROCARBONS OR COPOLYMERS OF CONJUGATED DIENES AND VINYL AROMATIC HYDROCARBONS
HOUSING FOR AN ELECTRICAL INSTALLATION DEVICE
PROCESS FOR THE SIMULTANEOUS PRODUCTION OF METHANOL-SYNTHESIS GAS AND AMMONIA-SYNTHESIS GAS
REMOVAL OF METAL IONS FROM AQUEOUS MEDIUM USING A CATION-EXCHANGE RESIN HAVING WATER-INSOLUBLE COMPOUND DISPERSED THEREIN
APPARATUS FOR RECEIVING AND REINFUSING BLOOD
