| 发明名称 |
Drill supporting column |
| 摘要 |
|
| 申请公布号 |
US1930598(A) |
申请公布日期 |
1933.10.17 |
| 申请号 |
US19300461506 |
申请日期 |
1930.06.16 |
| 申请人 |
SCOTT VICTOR L |
发明人 |
SCOTT VICTOR L. |
| 分类号 |
E21B7/02 |
主分类号 |
E21B7/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
您可能感兴趣的专利
IMAGE FORMING APPARATUS, INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, INFORMATION PROCESSING PROGRAM AND STORAGE MEDIUM
INKJET RECORDING METHOD AND APPARATUS
THERMOCHROMIC COLOR-MEMORY MOLDING RESIN COMPOSITION AND MOLDED ARTICLE THEREOF
DOUBLE-SIDED POLISHING MACHINE
DATA PROCESSING SYSTEM, DATA PROCESSING METHOD AND PROGRAM
RADIO RECEIVING DEVICE, RADIO COMMUNICATION SYSTEM AND ELECTRONIC APPARATUS
TONER, METHOD FOR MANUFACTURING TONER, TWO-COMPONENT DEVELOPER AND IMAGE FORMING APPARATUS
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
OPTICAL COMMUNICATION SYSTEM CAPABLE OF OFFERING ANALOG TELEPHONE SERVICES
IMAGE SUPPLY DEVICE, CONTROL METHOD OF THE DEVICE, AND PRINT SYSTEM
OPTICAL DISK MEDIUM AND OPTICAL DISK DEVICE
METHOD AND SYSTEM FOR RADIO PRINTING BASED ON RADIO LAN PLATFORM
NETWORK DEVICE AND DEVICE RESERVATION SYSTEM
DOCUMENT PROCESSOR
OA SYSTEM, ITS SCREEN INFORMATION OPTIMIZATION METHOD, SERVER COMPUTER AND PROGRAM
EVALUATION METHOD OF MOLDED PRODUCT, RARE-EARTH ELEMENT SINTERED MAGNET, AND ITS MANUFACTURING METHOD
STORING BOX FOR GROCERY BAG
IMAGE FORMING DEVICE, TRIAL PRINTING METHOD AND PRINTER DRIVER
IMAGE OUTPUT SYSTEM AND IMAGE OUTPUT METHOD
PIEZOELECTRIC ACTUATOR
