专利检索_ .具有朝向相反轴向的切削刃专利检索_ .具有朝向相反轴向的切削刃专利检索查询

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
101	Rotary drill bit and stabilizer	US51642655	1955-06-20	US2803435A	1957-08-20	KAMMERER JR ARCHER W

102	Rock drill	US20151450	1950-12-19	US2679382A	1954-05-25	ADALBERT SCHMIDT

103	Reaming collar for drill steels	US9092649	1949-05-02	US2607561A	1952-08-19	JOHN ALGER

104	Rock drill bit	US3942348	1948-07-19	US2602639A	1952-07-08	GREEN GWYLAM G

105	Key seat enlarger	US65726746	1946-03-26	US2501025A	1950-03-21	BURRIS JOSEPH J

106	Rock bit	US68288946	1946-07-11	US2499282A	1950-02-28	ROBERTS WILLIAM A

107	Well drilling guide tool	US77402747	1947-09-15	US2495073A	1950-01-17	MORRIS WILLIAM P

108	Sucker rod coupling	US25173139	1939-01-19	US2244104A	1941-06-03	FITZPATRICK JEREMIAH J

109	Coke cleaning apparatus	US16460637	1937-09-18	US2205757A	1940-06-25	WHEAT GEORGE W

110	Underreamer	US16681837	1937-10-01	US2180452A	1939-11-21	BOULTER GEORGE M

111	Tube cleaner	US73481734	1934-07-12	US2095725A	1937-10-12	WILFRED WHEALY

112	Broaching tool	US62912532	1932-08-17	US1941217A	1933-12-26	MCKINLESS JR FRANK V

113	Reamer for well drills	US53610931	1931-05-09	US1937742A	1933-12-05	ORAN BRINK MEHL

114	Well drilling apparatus	US56927531	1931-10-16	US1899728A	1933-02-28	SANDSTONE HARVEY D

115	Drilling of bore holes	US49494630	1930-11-11	US1848762A	1932-03-08	EDWARD ATKINSON ALBERT

116	Drill collar	US41646729	1929-12-26	US1848128A	1932-03-08	HINDERLITER FRANK J

117	Underreamer	US14958226	1926-11-20	US1754830A	1930-04-15	MACCLATCHIE JOHN W

118	Rotary reamer	US3001425	1925-05-13	US1686403A	1928-10-02	ALEXANDER BOYNTON

119	Rotary bit for drilling wells	US9488326	1926-03-15	US1637594A	1927-08-02	ALEXANDER STEWART

120	Rock drill	US7537725	1925-12-14	US1624312A	1927-04-12	CARLSON ANTHONY E

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