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
Process and apparatus for perforating sheet materials
摘要
申请公布号
US2220270(A)
申请公布日期
1940.11.05
申请号
US19370168343
申请日期
1937.10.11
申请人
UNITED STATES GYPSUM COMPANY
发明人
PAGE JOHN
分类号
B26F1/08
主分类号
B26F1/08
代理机构
代理人
主权项
地址
您可能感兴趣的专利
GLOBAL SOUND MICROPHONE SYSTEM
Process for preparing a semiconductor body
Device for installing a glass or plastic pane into a bodywork opening with a set back flange, comprises a sealing unit which is glued to the pane and consists of two different materials
PULSE-MODULATED D.C. VOLTAGE APPLICATION PROCESS
COMBINATION CONTRACEPTIVE CONTAINING PROGESTERONE ANTAGONISTS AND A PROGESTOGEN
Warning lights using light intensity varied in either a rhythmic or non rhythmic cycle
Magnetic system for electromagnetic relay has 2 parallel separate iron parts associated with common coil device
Arrangement of an airbag module in part of a seat in a motor vehicle
Semiconductor device capable of reducing a clock skew in a plurality of wiring pattern blocks
RIDER ROLL UNIT FOR WINDING MACHINES
Recording and reproducing apparatus and recording and reproducing method
Decoding device
VERFAHREN UND VORRICHTUNG ZUR ERZEUGUNG VON HEISSGAS
Internal operating device, for automobile door, has rosette enclosing operating range of pivoted operating lever
Gravure printing ink mixed with an organophilic complex of water-insoluble, hydrated, cation-exchangeable, film-forming, smectic foliated silicate with organic group derived from onium ion compound is used for printing paper and cardboard
CIRCUIT FOR DE-ACTIVATING A MOS TRANSISTOR OUTPUT STAGE
Automatic frequency control for direct-conversion FSK receiver
Improved Alumina coated cemented carbide body
UNBALANCED RINGING USING A BALANCED RINGING GENERATOR OF A SUBSCRIBER LINE INTERFACE CIRCUIT
Screen-printing device with printing-station shield
