Patents for inventions. (Class 104 (i), 1916-20 (100,001 -- 155,800))
Railway and tramway crossings and points and switches
Abridgments Specifications
1926
20 pages
Aufsatz (Zeitschrift)
Englisch
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Railway and tramway crossings and points and switches
Engineering Index Backfile | 1929
Engineering Index Backfile | 1929
Optimisation of railway switches and crossings
TIBKAT | 2014
|Optimisation of railway switches and crossings
Tema Archiv | 2014
|SWITCH MACHINE FOR RAILWAY AND TRAMWAY SWITCHES OR THE LIKE
Europäisches Patentamt | 2020
|