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
Method of and apparatus for recording sound on motion picture, films
摘要
申请公布号
US1828444(A)
申请公布日期
1931.10.20
申请号
US19280319515
申请日期
1928.11.15
申请人
WILLIAM ROM
发明人
ROM WILLIAM
分类号
G03B31/00
主分类号
G03B31/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
MAGNETIC RECORDING MEDIUM OF METALLIC THIN FILM TYPE
RESIN COMPOSITION HAVING OXYGEN BARRIER PROPERTY AND PACKAGING MATERIAL MADE THEREFROM
WAFER CARRIER ROBOT
MAGNETIC RECORDING MEDIUM
METHOD AND DEVICE FOR SEPARATING IMAGE SIGNAL
METHOD FOR MEASURING THICKNESS OF RESIN FILM OF COMPOSITE METAL PLATE
AUTO-FOCUS CONTROL APPARATUS FOR A CAMERA
ARTIFICIAL VENOUS VALVE
DRAWING DEVICE FOR SYNTHETIC FILAMENTS
METHOD AND APPARATUS FOR EXTRACTING A CEMENT MANTLE FROM A BONE RECESS
MOLDED REFRIGERATOR SHELF AND SUPPORT BRACKET
PROCESS FOR PRODUCTION OF GLASS ARTICLE
BALL END MILL AND THROW AWAY INSERT FOR SUCH END MILL
GOLF BALL
STEP-ON WASTE CONTAINER
SELF CONFIGURING MEMORY SYSTEM
LAUNDRY DRYER
REEL DISC BRAKE DEVICE OF TAPE RECORDER
SPINNING REEL
VINYL HOUSE OPENING AND SHUTTING EQUIPMENT
