专利检索_ .防止接近线路的防护板或障碍物专利检索_ .防止接近线路的防护板或障碍物专利检索查询

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B61L29/023： ..{专用栏木}

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	Yieldable barrier with mechanical stop signal	US6629825	1925-11-02	US1689257A	1928-10-30	SAWYER EMERSON D

142	Barrier device for stopping vehicles	US52523621	1921-12-27	US1687147A	1928-10-09	SAWYER EMERSON D

143	Automatic railroad-crossing gate and signal	US18552027	1927-04-21	US1686771A	1928-10-09	DANIEL SCHNEIDER

144	Yieldable barrier	US63936623	1923-05-16	US1666508A	1928-04-17	SAWYER EMERSON D

145	Railway gate	US13066826	1926-08-21	US1649748A	1927-11-15	SCOTT CHARLES D

146	Railway safety appliance	US7268825	1925-12-02	US1648383A	1927-11-08	GAGE CHARLES H

147	Railroad-crossing gate	US74639224	1924-10-28	US1648072A	1927-11-08	SPRATLEN ROY E

148	Traffic safety gate	US18825827	1927-05-02	US1646820A	1927-10-25	JIMMIS JOHN E

149	Safety signal gate	US6602925	1925-10-31	US1612016A	1926-12-28	HARPER ALLEN B

150	Safety device for railroad crossings and the like	US5004625	1925-08-13	US1582771A	1926-04-27	HENRY MONOSKI

151	Railroad-crossing gate	US72468124	1924-07-07	US1569908A	1926-01-19	BEECHER EDWARD E

152	Lamp hanger	US75109024	1924-11-20	US1541128A	1925-06-09	ENNIS COMMIE L

153	Illuminating device for relatively long and narrow objects or surfaces	US73731424	1924-09-12	US1537151A	1925-05-12	ANTON SOLLING SAMUEL

154	Gate mechanism	US66004823	1923-08-29	US1530056A	1925-03-17	PETER PACE

155	Emergency traffic barrier	US66740024	1924-01-19	US1529744A	1925-03-17	KEENAN JOHN J

156	Highway-crossing signal	US67672523	1923-11-24	US1492268A	1924-04-29	RICHARDS DANIEL W

157	Barrier gate	US50511121	1921-10-03	US1416162A	1922-05-16	BLACK LESTER S

158	Crossing-gate.	US15392417	1917-03-10	US1271877A	1918-07-09	FARMAN DAN V

159	Gate.	US11806216	1916-09-01	US1212439A	1917-01-16	BEAUREGARD ALBERT FRANK

160	Railroad-crossing-gate lamp.	US3246915	1915-06-05	US1160303A	1915-11-16	MACDONALD ALLAN KIRKWOOD

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