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
BOOK CONSTRUCTION
摘要
申请公布号
CA450612(A)
申请公布日期
1948.08.17
申请号
CAD450612
申请日期
申请人
SPIRAL BINDING COMPANY
发明人
WILLIAM A. DE HART
分类号
主分类号
代理机构
代理人
主权项
地址
您可能感兴趣的专利
SOFA BED MECHANISM
MOVABLE JAW WRENCH
CASTER CONSTRUCTION
Stabilized receivers for space vehicles
Shades
Portable lamp
Estra-1, 3, 5(10)-trienes having solubilizing groups
Boat centering and stop apparatus
Fuel feeding systems
Reciprocating fluid motor
Tunnel burners
Examination light
Sheet conveying apparatus
French roll dough processing mechanism
Manufacture of shoe components
Microelectronic chopper circuit having symmetrical base current feed
Cavity radiator with a pyrotechnic charge that remains intact during and after combustion
Process for preparing sulfonic acid esters
Wide angle television system utilizing optical fibers
Filter with cleaning means