Rock drill,申请号US19400321346-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	Rock drill
摘要
申请公布号	US2338625(A)	申请公布日期	1944.01.04
申请号	US19400321346	申请日期	1940.02.28
申请人	SULLIVAN MACHINERY COMPANY	发明人	CURTIS JOHN C.
分类号	E21B19/084	主分类号	E21B19/084
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Memory remote control device

Optical phase plate and production process thereof

FOERFARANDE FOER FRAMSTAELLNING AV KOPPAR OCH KOPPARBLANDNINGAR SOM HAERDATS MED HJAELP AV BORIDDISPERSION.

DETECTION DEVICE OF AN INTERNAL ARC IN A METALCLAD ELECTRICAL INSTALLATION

FATIQUE RESISTANT ORTHOPAEDIC IMPLANT AND METHOD OF MANUFACTURE

PHOTOGRAPHIC SILVER HALIDE MATERIALS CONTAINING ARYL HYDRAZIDES

OLIGONUCLEOTIDE THERAPIES FOR MODULATING THE EFFECTS OF HERPESVIRUSES

CYCLOALKYL-SUBSTITUTED GLUTARAMIDE ANTIHYPERTENSIVE AGENTS

Compact disc case

Sheet for a comforter or blanket

Package of skipping stones

Combined watch case and wrist band

Portable computer with a display screen

Portable cordless handset telephone