专利检索_ ..吊钩专利检索_ ..吊钩专利检索查询

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	Locking device for swiveling casing hooks	US61644832	1932-06-10	US1922386A	1933-08-15	MINOR BURT S

122	Safety tubing hook	US43067630	1930-02-24	US1845707A	1932-02-16	ELLIS GREEN

123	Spring hoisting device	US43443730	1930-03-08	US1796981A	1931-03-17	CREIGHTON THOMAS A

124	Tubing hook	US26545028	1928-03-28	US1747128A	1930-02-11	O'BANNON WALTER A

125	Safety hook	US31128728	1928-10-09	US1740782A	1929-12-24	RATIGAN JAMES P

126	Hook	US25749328	1928-02-27	US1711440A	1929-04-30	DELBERT BAKER

127	Safety hook	US20747127	1927-07-21	US1676167A	1928-07-03	SPRAIN JOSEPH E

128	Swivel hook	US10846126	1926-05-12	US1657260A	1928-01-24	HOLT CHARLES K

129	Clevis	US14535726	1926-10-30	US1645714A	1927-10-18	NEILSON ALBERT H

130	Hook	US61408423	1923-01-22	US1636209A	1927-07-19	JOHN BERGSTEN

131	Safety connecting link	US1605853D		US1605853A	1926-11-02

132	Safety hook	US3484825	1925-06-04	US1599087A	1926-09-07	GREVE EDGAR E

133	Safety hook	US7947826	1926-01-05	US1596948A	1926-08-24	SAUNDERS WILLIAM W

134	Safety hook	US7505125	1925-12-12	US1582345A	1926-04-27	O'BANNON WALTER A

135	Hook for well-drilling machines	US73296424	1924-08-19	US1573444A	1926-02-16	JORDAN LUTHER M

136	Safety hook	US74611924	1924-10-27	US1546208A	1925-07-14	CUNNINGHAM WINTFORD P

137	Casing hook for drilling apparatus	US65306423	1923-07-23	US1536617A	1925-05-05	MONTGOMERY GUSTAVUS A

138	Well-casing hook	US73175824	1924-08-13	US1524761A	1925-02-03	EDWARD TIMBS

139	Safety connecter for well works	US66781723	1923-10-11	US1522979A	1925-01-13	RATIGAN JAMES P

140	Casing hook	US67119423	1923-10-27	US1519430A	1924-12-16	YOUNG FORREST J

1 2 3 4 5 6 7 8

该功能需要专业版企业版VIP权限，您可以：