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
Mirror reflex camera with binocular eye level view finder
摘要
申请公布号
US2284562(A)
申请公布日期
1942.05.26
申请号
US19400367271
申请日期
1940.11.26
申请人
GEORG DITTMANN
发明人
DITTMANN GEORG
分类号
G03B19/12
主分类号
G03B19/12
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Ballast dressing unit on machines which dress and re-distribute railway road bed ballast.
A microprocessor having a dynamic memory refresh circuit.
Continuous process for preparing interlaced polyester yarns.
Integrated circuit compatible thin film field effect transistor & method of making same.
Biodic electrofiltration.
Process for the preparation of tertiary aralkyl urethanes and process for the preparation of isocyanates derived therefrom.
Radiation image read-out apparatus.
Switching system and method for network having a plurality of terminal control equipment units.
A self-aligned split gate EPROM and a method of manufacturing the same.
Solder composition.
IMprovements in or relating to electro-sensitive materials.
Method of manufacturing aluminium contacts through a thick insulating layer in a circuit.
Imidazothiazolemethylene-acetohydrazide derivatives, preparation thereof and pharmaceutical composition having diuretic activity.
Novel tetrahydro-B-carboline derivative and processes for preparation thereof.
Method and apparatus to form grain coverings on articles of reactive plastics formulation.
MECHANISM FOR STEPWISELY DRIVING SWITCH OPENING AND CLSING UNIT IN TIMER OF LIKE
HEAT PUMP TYPE AIR CONDITIONER
CLOTHING WASHING METHOD BY DRYCLEANING MACHINE
POCKET TYPE ACTUAL ANIMATION APPARATUS
EYE EXAMINATION APPARATUS
