Replaceable bit rock drill,申请号US19330696509-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	Replaceable bit rock drill
摘要
申请公布号	US2010070(A)	申请公布日期	1935.08.06
申请号	US19330696509	申请日期	1933.11.03
申请人	CHARLES ERICKSON	发明人	ERICKSON CHARLES
分类号	E21B10/58	主分类号	E21B10/58
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Self-ejecting compact disc case

Case for packaging and storing a magnetic disk cartridge

Process for producing the mold inserts for injection moldings

Money and card holder

Casing having right and left side plates adapted to cover right and left openings of the casing without using locking screws

Virtual image projection device

Capillary pumped heat transfer loop

Multiple outlets self-actuated irrigation valve

Welded bracket for supporting superheat and reheat assembly tubing on steam cooled hanger tubes

Split wedge bolster pocket insert

Retaining device of socket spanner

Jar and bottle lid closing and opening device

Tangential fan scroll and discharged diffuser design

Flower holder with angled flower support

Combing machine with an autoleveller drafting arrangement

Adjustable tank ball assembly for a two-step flushing control type ballfloat toilet

Inflatable boat with detachable hull

Infusing device for a beverage

Partially sprung drive, in particular for electric traction vehicles