Donald McCallum

Follow

Person

Glasgow, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus and components for turnout/crossover section for railway...
- Patent number 11,001,973
- Issue date May 11, 2021
- Non Intrusive Crossover System Limited
- Roy Anderson
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Turnout/crossover section for railway track
- Patent number 7,604,205
- Issue date Oct 20, 2009
- Scott-Track Limited
- Donald McCallum
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
Apparatus And Components For Turnout/Crossover Section For Railway...
- Publication number 20190003129
- Publication date Jan 3, 2019
- Non Intrusive Crossover System Limited
- Roy Anderson
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
TURNOUT/CROSSOVER SECTION FOR RAILWAY TRACK
- Publication number 20090084862
- Publication date Apr 2, 2009
- Donald McCallum
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
Turnout/crossover section for railway track
- Publication number 20060065791
- Publication date Mar 30, 2006
- Donald McCallum
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES