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
TEACHING DEVICE
摘要
申请公布号
US3526974(A)
申请公布日期
1970.09.08
申请号
USD3526974
申请日期
1968.05.01
申请人
EUNICE M. VAN DERVEER;EARL B. VAN DERVEER
发明人
EUNICE M. VAN DERVEER;EARL B. VAN DERVEER
分类号
G09B3/04;(IPC1-7):G09B19/02
主分类号
G09B3/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
METHOD OF WHITENING TEXTILE MATERIAL OF ANIMAL-ORIGIN FIBERS
APPARATUS FOR TEMPORARY SUSPENSION OF FIRED ANODES
LOW-ALCOHOLIC DRINK
METHOD OF CLADDING METAL SURFACES BY EXPLOSION WELDING
CUTTING TOOL
METHOD FOR FORMING ABSORBED RADIATION DOSE IN PERFORMING NEUTRON THERAPY
REFRIGERATOR TEMPERATURE CONTROL SYSTEM (VERSIONS)
WET SHAVING DEVICE WITH GUARD/TRANSFER ROLLER AND REPLACEABLE SHAVING AID
CARTOP SIGN
WIRELESS COMMUNICATION APPARATUS
Menetelmä grafiikkasovelluksien suorittamiseen
SHUTOFF FOR CONTAINER, METHOD OF MAKING OF SHUTOFF AND CONTAINER USED WITH SHUTOFF
TEAR-OFF TAPE FOR PACKAGES (VERSIONS)
PAN DRIVING DEVICE FOR MICROWAVE OVEN AND MICROWAVE OVEN WITH PAN
METHOD FOR PRODUCING STEREOSCOPIC TELEVISION PICTURES
PLANAR ANTENNA FOR MOBILE RADIOPHONE (ALTERNATIVES)
METHOD OF IMMUNOSORBENT PREPARING
METHOD FOR PREDICTING PYELONEPHRITIS IN CHILDREN
ROCKET
APPARATUS FOR ELECTROCHEMICAL MEASUREMENTS
