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
Phonograph
摘要
申请公布号
US2293723(A)
申请公布日期
1942.08.25
申请号
US19400340418
申请日期
1940.06.14
申请人
JAMES E. JOHNSON
发明人
ERICKSON GUSTAV F.
分类号
G07F17/30
主分类号
G07F17/30
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Prefabricated element for industrial firing furnaces
Crank mechanism having a piston rod with crosshead for single-acting reciprocating engines
Locking mechanism for customer lockers
Process for protecting a metal article against corrosion
Narrow-gauge cine camera with a varifocal lens
Device for removing finely distributed solids from a gas
MODEL VEHICLE WITH BOX BODY OPENABLE AT THE REAR
PREPARATION OF HIGHHGRADE TEREPHTHALIC ACID
MANUFACTURE OF HIGHLY PURE TEREPHTHALIC ACID FOR DIRECT POLYMERIZATION
PREPARATION OF TTALKYLLBENZALDEHYDES
PREPARATION OF AMINO ACID
DETECTION MECHANISM FOR PAPER FEEDING
AUTOMATIC TEXTURE BLOT COMPENSATING DEVICE
METHOD OF PRODUCING LIGHT EMITTING OR RECEIVING SEMICONDUCTOR ELEMENT SEAL
OPERATIONAL METHOD OF CURRENT TYPE INVERTER
MAGNETIC RECORDING AND REPRODUCING APPARATUS
COMPOUND 44CARBOXYPHTHALATO*1*22DIAMINOO CYCLOHEXANU*PLATINA*2**ITS ALKALI METAL SALT AND ITS USE TO MICE LEUCOCYTE ALLEVIATION
ISOMERIZATION OF C8 ALKYL AROMATIC HYDROCARBONS
PRINTER
HEAT ION DETECTOR