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
Method and means for tensioning and for mounting diaphragms
摘要
申请公布号
US1863073(A)
申请公布日期
1932.06.14
申请号
US19300446691
申请日期
1930.04.23
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
SMYTHE EDWIN H.
分类号
H04R31/00
主分类号
H04R31/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
CONTROL DEVICE FOR CLUTCH DIRECTLY CONNECTED WITH TORQUE CONVERTER OF AUTOMATIC SPEEDDCHANGING DEVICE
LEAK DETECTION METHOD OF PROVIDED PIPE
PEG
VIRTUAL COMPUTER SYSTEM
PREPARATION OF NOVEL 6-/D-2-ACYLAMIDE-2-PHENYLACETAMIDE/-PENICILLANIC ACID
ELECTRIC MECHANISM FOR THE LIGHTING CORRIDORS OF BUILDINGS PER FLOOR
MULTI-LENS OF A BALL PART,ROTARING AROUND FROM A COLLECTOR-CONVERSER FOR THE EXPLOITATION OF SOLAR ENERGY
APPARATUS FOR CUTTING AND MEASURING PIECES OR LUMPS OF RUBBER TO BE SUPPLIED TO THE RUBBER COMPOUND MIXER
PROCESS FOR PREPARING NOVEL DERIVATIVES OF DIBENZO/D,G//1,3,6/DIOXAZOCIN
REMOTE CONTROL UNIT
OUTPUT PORT CIRCUIT
FLEXISIBLE HOSE
BACKET FLOAT TYPE STEAM TRAP
APPARATUS FOR PURIFYING NON BURNED HOT INDUSTRIAL GASESCONTAINING DUST
PROCESS FOR MANUFACTURING THE LEAD IN ROTARY-TILTABLE FURNACES
WELL PROTECTION AGENT FOR WELLS,ESPECIALLY SULFUR WELLSPREPARED FOR EXPLOITATION USING UNDERGROUND MELTING METHOD
MULTI-STAGE FORCE TRANSDUCER
WATCHING TELESCOPE HOLDER
APPARATUS FOR LAYING PATTERN ON FABRIC
FIRE FIGHTING EQUIPMENT ESPECIALLY FOR EXTINGUISHING FIRE FIELDS IN MINING EXCAVATIONS
