CH 129b

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Swiss patent class 129 was for Aérostation et aviation. Subclass CH 129b was for Machines volantes, distinguished from motors, navigation, kites, or aerostats. This wiki has 60 patents in category "CH 129b".

Patents in category CH 129b

Enclosing categories Swiss patent classifications, 1908-1920, CH 129
Subcategories
Keywords Aeronautics
Start year 1908
End year