专利检索_ ..切割器具可穿过钻管活动并可横向移动的专利检索_ ..切割器具可穿过钻管活动并可横向移动的专利检索查询

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
141	Retrievable drilling apparatus for bore holes	US83563659	1959-08-24	US3074494A	1963-01-22	KAMMERER ARCHER W

142	Retractable drill	US67965257	1957-08-22	US2979144A	1961-04-11	EDWARD ECKEL JOHN; CAMP JOHN M

143	Replaceable drill bit	US68151457	1957-09-03	US2890022A	1959-06-09	BROWN JR LOTHROP L

144	Hard formation retractable drill bit	US26889452	1952-01-29	US2771275A	1956-11-20	ORTLOFF JOHN E

145	Retractable hard formation drill bit	US26889152	1952-01-29	US2764388A	1956-09-25	CAMP JOHN M

146	Earth boring tool	US79381647	1947-12-26	US2499252A	1950-02-28	MICHAEL GURNEY L

147	Collapsible drilling tool	US41110641	1941-09-17	US2375335A	1945-05-08	WALKER CLINTON L

148	Collapsible deep well drill	US18726938	1938-01-27	US2173018A	1939-09-12	HURLEY WALTER G

149	Drilling apparatus	US11894737	1937-01-04	US2144687A	1939-01-24	PIPPIN JOHN W

150	Collapsible rotary core drill	US1665035	1935-04-16	US2099859A	1937-11-23	MACREADY GEORGE A

151	Collapsible bit	US56270431	1931-09-14	US1949705A	1934-03-06	BANNISTER CLYDE E

152	Well drilling bit set	US48130230	1930-09-11	US1836703A	1931-12-15	PETER CHRISTENSEN

153	Collapsible bit	US27023628	1928-04-16	US1833134A	1931-11-24	STOKES JOHN C

154	Collapsible bit	US18647327	1927-04-25	US1819798A	1931-08-18	STOKES JOHN C

155	Earth-drilling apparatus	US5527625	1925-09-09	US1741497A	1929-12-31	BOLTZ FRED S

156	Rotary drill bit	US70177424	1924-03-25	US1669467A	1928-05-15	HARRIS IRVIN F

157	Detachable rotary bit	US9190126	1926-03-03	US1607791A	1926-11-23	SMITH WINFIELD W

158	Expansive and cqntbactive odeep-wbll brill	US57315322	1922-07-06	US1597143A	1926-08-24

159	Detachable rotary bit	US68266923	1923-12-26	US1585540A	1926-05-18	DOUGHERTY CHARLES T

160	Drill	US74971024	1924-11-13	US1574040A	1926-02-23	LASHER ALFRED W

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