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
Directive antenna system
摘要
申请公布号
US1885151(A)
申请公布日期
1932.11.01
申请号
US19290382103
申请日期
1929.07.30
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
STERBA ERNEST J.
分类号
H01P5/02;H01Q21/06
主分类号
H01P5/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
DIAPER-HOLDERS OR NAPKIN-HOLDERS FOR BABIES
ENSILAGE FEEDER
STEERING, ENGINE AND TRANSMISSION CONTROL FOR BOATS
RETAINING MEANS FOR INITIAL THREAD ENDS AND THREAD CUTTING DEVICE FOR DOUBLE CHAINSTITCH SEWING MACHINES
CONTINUOUS ACTION BOARD PRESS
ELECTRIC BROILER FOR SIMULTANEOUSLY BROILING A PLURALITY OF LARGE VIANDS
PHOTOGRAPHIC ROLL FILM PROCESSING APPARATUS
APPARATUS FOR PROCESSING PHOTOGRAPHIC MATERIAL OR THE LIKE
LIQUID LEVEL GAUGE
BATHYAL UNIT
PHOTOGRAPHIC APPARATUS WITH AUTOMATICALLY AND MANUALLY ADJUSTABLE SHUTTER MEANS
TUBE MAKER REGISTRATION CONTROL
WEAR TESTING APPARATUS
UNDERWATER OIL PRODUCTION SEPARATOR
CAN OPENER WITH CUTTING ELEMENT CARRYING HAND LEVER AND PUSH BUTTON OPERATED MECHANISM FOR REMOVING SAME
METHOD OF PRESSURE WELDING OF METALS AND DEVICE FOR ITS REALIZATION
PROCESS FOR PRODUCING BULKY YARN FROM MULTIFILAMENT YARN
IMPACT CLAM EXTRACTOR
METHODS AND ARTICLES FOR PREVENTING CLOTTING OF BLOOD
CAN OPENER WITH REMOVABLE HAND LEVER