Improvements in photographic enlarging apparatus,申请号GB19470011248-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	Improvements in photographic enlarging apparatus
摘要
申请公布号	GB638870(A)	申请公布日期	1950.06.14
申请号	GB19470011248	申请日期	1947.04.28
申请人	EMILE HENRI DU HEAUME	发明人
分类号	G03B27/36	主分类号	G03B27/36
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Matrix display and its drive method

Distillation apparatus and distillation method

Compensating organic light emitting device displays for temperature effects

Method and device for an internal combustion engine

Encryption secured against DPA

Control method for a direct injection gas engine with fuel vapor purging

Method of modifying the temperature stability of a low temperature cofired ceramics (LTCC)

Confectionery compositions

Method and device for running optimum power control

Information recording apparatus for controlling recording power of a recording medium having a constant linear density, an information recording method, an information recording program, a recording medium that can be read and written to by a computer, and circuit parts

Optical transceiver

Techniaue for live insertion of transceiver modules in a telecommunication system

Application class extensions

Methods and systems for synchronizing processes executing on a digital data processing system

Wound therapy and tissue management system and method with fluid differentiation

Corona method and apparatus for altering carbon containing compounds

Earphone transfer coupling apparatus

Semiconductor memory device having a plurality of signal lines for writing and reading data

Warming blanket having remote safety circuit

Error correcting communication method and communication apparatus to which this communication method is applied