发明名称 |
Chalk board eraser |
摘要 |
|
申请公布号 |
US3418673(A) |
申请公布日期 |
1968.12.31 |
申请号 |
US19670614069 |
申请日期 |
1967.02.06 |
申请人 |
ANDRE E. KRUTH |
发明人 |
KRUTH ANDRE E. |
分类号 |
B43L21/02 |
主分类号 |
B43L21/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|
您可能感兴趣的专利
FORMATS FOR DATABASE TEMPLATE FILES SHARED BETWEEN CLIENT AND SERVER ENVIRONMENTS
SEMI-POWER SPLIT HYBRID TRANSMISSION WITH MULTIPLE MODES AND FIXED GEARS
Tai chi style yoga bag
MULTIPLE CLIP DEVICE AND MULTIPLE CLIP APPLICATION APPARATUS
ELECTROLUMINESCENT DEVICE HAVING A VARIABLE COLOR POINT
MODULAR PRIMARY DISTRIBUTION CONTACT BOARD
INFORMATION RECORDING METHOD, INFORMATION RECORDING MEDIUM, AND INFORMATION REPRODUCING METHOD, WHEREIN INFORMATION IS STORED ON A DATA RECORDING PORTION AND A MANAGEMENT INFORMATION RECORDING PORTION
APPARATUSES AND METHODS FOR TRANSMISSION AND RECEPTION IN A CODEBOOK BASED CLOSED-LOOP (CL)-MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) SYSTEM
System and method for blocking mobile phone calls and messages
Method for Channel Quality Measures in a Multiple Antenna System
COMPOSITIONAL ANALYSIS METHOD, IMAGE APPARATUS HAVING COMPOSITIONAL ANALYSIS FUNCTION, COMPOSITIONAL ANALYSIS PROGRAM, AND COMPUTER-READABLE RECORDING MEDIUM
SYSTEM AND METHOD FOR COUNTERING NOISE WHEN OPERATING AN ADDRESS SYSTEM IN A PASSENGER TRANSPORT
Ribbon Needle Loom for Manufacturing a Strip, in Particular a Label Strip, Having a Woven-In Conductive Thread, in Particular Antenna Thread
ROOFING PLATE WITH EAVE-SIDED PLASTIC STRIP
BUS SYSTEM FOR USE WITH INFORMATION PROCESSING APPARATUS
DATA DECODING APPARATUS, MAGNETIC DISK APPARATUS, AND DATA DECODING METHOD
ARITHMETIC DEVICE, ARITHMETIC METHOD, HARD DISC CONTROLLER, HARD DISC DEVICE, PROGRAM CONVERTER, AND COMPILER
INFORMATION PROCESSING APPARATUS, CONTROL METHOD, CONTROL PROGRAM, AND NAME MAPPING INFORMATION
SLIP CONTROL FOR A MATERIALS HANDLING VEHICLE
Data processing system and method