专利检索_ ..弹性保护器或扶正装置专利检索_ ..弹性保护器或扶正装置专利检索查询

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
121	Casing centralizer with replaceable wings	US10113761	1961-04-06	US3080926A	1963-03-12	REMP JR THOMAS E

122	Drill collar stabilizer	US74793458	1958-07-11	US3063759A	1962-11-13	MOORE STANLEY C; ROLLINS HENRY M; BACHMAN WILLIAM S

123	Drill string bushing tool	US41324654	1954-03-01	US2715552A	1955-08-16	LANE JOHN J

124	Protective guide device for well instruments	US68783846	1946-08-02	US2651199A	1953-09-08	COLLINS CHARLES P; BROKAW CHARLES A

125	Rubber sleeve protector for drill pipes	US74221047	1947-04-17	US2604365A	1952-07-22	HOWARD RALPH H

126	Cutter for drill pipe protectors	US8256749	1949-03-21	US2565274A	1951-08-21	SIMPSON CLYDE R

127	Method of manufacturing well drill pipe protectors	US52728344	1944-03-20	US2433042A	1947-12-23	GRAHAM ADELBERT M

128	Drill pipe protector	US39333541	1941-05-14	US2368415A	1945-01-30	GRANT JOHN M

129	Casing protector and booster	US29225739	1939-08-28	US2352412A	1944-06-27	DAVID SANDSTONE HARVEY

130	Mining machine chain bit and holder therefor	US37355741	1941-01-08	US2328134A	1943-08-31	FULKE FRANK L

131	Mold for sub stabilizers	US38180141	1941-03-05	US2286716A	1942-06-16	CLARK ERNEST J

132	Sleeve protector for earth boring drills	US29401839	1939-09-08	US2242847A	1941-05-20	JAMES BUTCHER HENRY; WILLIAM LUNN REGINALD

133	Tubing protector	US20898838	1938-05-20	US2197778A	1940-04-23	COWAN THOMAS R

134	Guide for drill pipe	US41728229	1929-12-30	US1910631A	1933-05-23	HERBERT OSBORNE

135	Drill pipe protector	US42337430	1930-01-25	US1907012A	1933-05-02	SMITH WALTER G L

136	Tubular coupling	US37335529	1929-06-24	US1889866A	1932-12-06	MONTGOMERY GUSTAVUS A

137	Coupler	US32256028	1928-11-28	US1863823A	1932-06-21	PAUL BARCLAY EDWARD

138	Drilling cable protecting means	US39989929	1929-10-16	US1855337A	1932-04-26	CATER WILLIAM H

139	Drill shaft buffer	US30944328	1928-10-01	US1841929A	1932-01-19	PAUL BARCLAY EDWARD

140	Cushion joint for rotary drill pipes	US69050724	1924-02-04	US1619728A	1927-03-01	HOPKINS ARTHUR C

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