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
Loud speaker
摘要
申请公布号
US2020211(A)
申请公布日期
1935.11.05
申请号
US19340750429
申请日期
1934.10.29
申请人
QUAM JAMES P
发明人
QUAM JAMES P.
分类号
H04R9/06
主分类号
H04R9/06
代理机构
代理人
主权项
地址
您可能感兴趣的专利
CONTROLLING POWER SUPPLIES CONNECTED IN PARALLEL
DUAL SPEED CONTROL CIRCUIT FOR POWER FLOW THROUGH AN INVERTER
METHOD AND AN APPARATUS FOR CONTROLLING THE FEEDING OF A BANDSAW BLADE
Manufacture of thinned substrate imagers
METHOD OF HARDENING GELATIN
TOOL SETTING SYSTEM
WHEEL TRIM ASSEMBLY
FRICTION MATERIAL PRODUCTION THEREOF AND FRICTION ELEMENT COMPRISING SAID MATERIAL
DEVICE FOR USE IN PROVIDING A WINDING ON A CLOSED-RING CORE
METHOD OF PRODUCING A CLAD SHAPED BODY
Selective cracking of phenylalkanes.
GATING CIRCUITS FOR SEMICONDUCTORS
PROCESS FOR THE PREPARATION OF ANDROSTAN-17-ONE DERIVATIVES
Lead alloys
POLYVINYL CHLORIDE COMPOSITIONS
RECHARGEABLE ELECTROCHEMICAL CELL
RECHARGEABLE ELECTROCHEMICAL CELL
A silver containing thick film conductor composition, a method for producing such a composition, a method of preparing a solar cell comprising screen printing said composition on an n-type layer of a semiconductor wafer and the solar cells thus obtained.
Expansible finger rings
