专利检索_ .用于在同一对轨道的两个方向上控制运务的专利检索_ .用于在同一对轨道的两个方向上控制运务的专利检索查询

子分类：

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
21	Signaling system for single-track railroads	US7256849	1949-01-25	US2581509A	1952-01-08	ANNEAR REED B

22	Railway signal control system	US77608947	1947-09-25	US2571834A	1951-10-16	CLAUS WILLIAM H

23	Railway traffic controlling apparatus	US67239546	1946-05-27	US2520858A	1950-08-29	SHIELDS CHARLES B

24	Coded signaling apparatus	US67664346	1946-06-14	US2496607A	1950-02-07	STAPLES CRAWFORD E

25	Coded track circuit signaling	US22939D		USRE22939E	1947-11-25

26	Railway traffic controlling apparatus	US48902043	1943-05-29	US2360208A	1944-10-10	CULBERTSON GEORGE A

27	Railway traffic controlling apparatus	US45617442	1942-08-26	US2354052A	1944-07-18	PELIKAN JOHN M

28	Traffic locking circuit	US43574542	1942-03-21	US2354023A	1944-07-18	IHRIG CLIFFORD D

29	Block signaling system for railroads	US39229841	1941-05-07	US2352986A	1944-07-04	WEBSTER OSBORNE B; COLEY NELSON B

30	Railway traffic controlling apparatus	US41116141	1941-09-17	US2352298A	1944-06-27	WALLACE HERBERT A

31	Coded track circuit signaling system	US46640642	1942-11-21	US2350657A	1944-06-06	WYNN HAROLD S

32	Coded track circuit signaling system	US41458541	1941-10-11	US2330895A	1943-10-05	JUDGE THOMAS J

33	Railway traffic controlling apparatus	US45713342	1942-09-03	US2324939A	1943-07-20	MCCANN RONALD A

34	Railway signaling system	US42230941	1941-12-10	US2300806A	1942-11-03	PFLASTERER GEORGE R

35	Railway signaling system	US39110441	1941-04-30	US2297121A	1942-09-29	YOUNG HENRY S; MCCANN RONALD A

36	Railway traffic controlling apparatus	US37043340	1940-12-17	US2292967A	1942-08-11	PELIKAN JOHN M

37	Railway traffic controlling apparatus	US284535	1935-01-22	US2159515A	1939-05-23	ALLEN EARL M

38	Automatic block signaling system for railroads	US2326835	1935-05-24	US2125243A	1938-07-26	LARRY EDWIN C; TWITCHELL MORTON C

39	Block signaling system for railroads	US3648135	1935-08-16	US2096939A	1937-10-26	PHINNEY ROBERT M

40	Railway traffic controlling apparatus	US7312636	1936-04-07	US2090711A	1937-08-24	VANHORN JAMES J

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