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
Volume-control system
摘要
申请公布号
US1762727(A)
申请公布日期
1930.06.10
申请号
US19270240105
申请日期
1927.12.15
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
MATHES ROBERT C.
分类号
H03G7/00
主分类号
H03G7/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
DEVICES AND METHOD FOR MAXILLARY SINUS LAVAGE
HERBICIDAL COMPOSITION COMPRISING URACIL COMPOUND AS ACTIVE INGREDIENT
LATERITE-NICKEL ORE PROCESSING METHOD FOR EFFICIENT NICKEL RESOURCE RECOVERY
ELECTROLYSIS CELL, IN PARTICULAR FOR THE PRODUCTION OF ALUMINUM
REMOTING GRAPHICAL COMPONENTS THROUGH A TIERED REMOTE ACCESS ARCHITECTURE
METHODS AND SYSTEMS FOR SACCHARIFICATION OF BIOMASS
TRIGGER LOCK-ON LOCK-OFF MECHANISM
Temperature controlled laminair air flow device
Integration of payment capability into secure elements of computers
Coil support member
Low weight and density fire-resistant gypsum panel
DEVICE FOR INSPECTING GRAPHENE BOARD AND METHOD THEREOF
SANITATION SEAT OF A TOILET BOWL FOR BACTERIAL SHATTERPROOF
MOUNTING BRACKET OF STEERING COLUMN
Composition comprising cyclic secondary amine and methods of coating drinking water pipelines
THE DEVICE FOR STERILIZATION AND DRYING OF SHOES
VESSEL ASSEMBLY FOR DIAGNOSIS AND ANALYSIS OF CLINICAL SPECIMEN
PACKING APPARATUS UTILIZING FLEXBLE FILM AS STNTHETIC RUBBER
BED FOR WAIST CORRECTION
SYSTEM OF EDITING DIGITAL MAP WITH GROUND PHOTO IMAGE AND GPS DATA
