发明名称 |
|
摘要 |
|
申请公布号 |
FR1595293(A) |
申请公布日期 |
1970.06.08 |
申请号 |
FRD1595293 |
申请日期 |
1968.12.18 |
申请人 |
|
发明人 |
|
分类号 |
E21B21/06 |
主分类号 |
E21B21/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|
您可能感兴趣的专利
METHOD AND APPARATUS FOR OPENING-UP FORMATION IN CASED-IN WELL TO DEPTH
METHOD OF SINKING WELLS IN SOIL
EARTH-MOVING WORKING MEMBER OF EXCAVATOR
INCLINED TRANSVERSE SHIP LIFT
ARRANGEMENT FOR PROTECTING FISH AGAINST ACCESS INTO WATER INTAKE
FIBROUS SUSPENSION CLASSIFIER
METHOD OF MECHANICAL HEAT TREATMENT OF METASTABLE AUSTENITIC STEELS
METHOD OF HEAT TREATMENT OF MARAGING STEEL WELDED JOINTS
METHOD OF MODIFYING POLYCARBONATE ARTICLES
1,2,3,4,11,11-HEXACHLOROTRICYCLO-/6,2,1,0 5, 10/-2-UNDECEN-6,7,8-TRICARBOXILIC ACID AS SEMIPRODUCT IN SYNTHESIS OF ITS ANTIPYRENE ANHYDRIDE BEING EPOXY RESIN HARDNER AND METHOD OF PRODUCING SAME
METHOD OF TREATING WASTE WATERS
FLOATING CRANE
METHOD OF WORKING EXTRA-THIN GENTLY-SLOPING COAL BEDS
APPARATUS FOR CONTROLLING WORKING MEMBER OF TRACK MAINTENANCE MACHINE
APPARATUS FOR DRY MIXTURE SALTING OF HIDES
METHOD AND APPARATUS FOR LOADING CARGO ONTO STEEP CONVEYER BELT
SLIT-TYPE FLOOR-MOUNTED TROLLEY CONVEYER
BELT CONVEYER
SHIP STABILIZING APPARATUS
VEHICLE COMBINATION TRAVELING GEAR