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
Loose-leaf binder
摘要
申请公布号
US1768151(A)
申请公布日期
1930.06.24
申请号
US19250051109
申请日期
1925.08.19
申请人
RINGLER WILLIAM A
发明人
RINGLER WILLIAM A.
分类号
B42F13/20
主分类号
B42F13/20
代理机构
代理人
主权项
地址
您可能感兴趣的专利
OPTICAL MODULATING ELEMENT
ENDOSCOPE
VIDEO TELEPHONE EQUIPMENT
HANDSET FOR TELEPHONE SET
PRIORITY ENCODER
SEMICONDUCTOR DEVICE
FULL DUPLEX COMMUNICATION SYSTEM
THERMAL OXIDIZING DEVICE FOR SEMICONDUCTOR SUBSTRATE
ION BEAM DEVICE
FILM FORMATION METHOD AND DEVICE THEREOF
FORMING DEVICE FOR DEPOSITED FILM
Device for the non-destructive inspection of a part by means of optical holography
Film loading data display device for camera
Autotransfusion device
4-((ALPHA,ALPHA DIARYL)-HYDROXYMETHYL)-1- PIPERIDINYLALKYL CYCLIC CARBAMATE DERIVATIVE
NOVEL COMPOUND, MANUFACTURE AND MEDICINAL COMPOSITION
SELECTIVE CARBONYLATION
PHARMACEUTICAL COMPOSITION
PRODUCTION OF ANILINOALKANECARBOXYLIC ACIDS
PURIFICATION OF CARBOXYLIC ACID
