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
Dispositif pour projeter une image en grandeurs variables
摘要
申请公布号
FR709257(A)
申请公布日期
1931.08.05
申请号
FRD709257
申请日期
1931.01.13
申请人
发明人
ROUGE CHARLES
分类号
G02B1/00
主分类号
G02B1/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
PNEUMATIC TIRE
CORROSION RESISTANT ALLOY
Process for sizing twistless filament yarns
Cooling jacket for mining
Cutter knife
Heat exchanger
Centrifugal speed governor for injection-type internal combustion engines
Device for limiting the swivelling range of rotationally movable components
Working platform for coking plant luting operations in the oven door area
Circuit arrangement for monitoring the serviceability of resistive heating elements
Power-assisted rack and pinion steering system, particularly for motor vehicles
Hydraulic harrow
Electrical coupling for the multipole connection of two cable networks (line networks)
SUPERCHARGED ENGINE WITH INSIDE COMBUSTION CONTAINING TURBOCOMPRESSOR WITH AXIAL TURBINE
Transformer fitted on a printed circuit board
GROWTH OF SEMICONDUCTOR SINGLE CRYSTALS
BREMSSCHEIBE
DOSING PUMP
RECORD PLAYER COMPRISING A LIFTING DEVICE FOR THE PICK-UP ARM
ELECTRONIC CONTACTLESS SWITCHING APPARATUS
