Patent certificate for the "Doegen-Lauthalter"
From the series
Source information
| Type | Patent
|
| Author | |
| Number |
447 394, class 42 g, group 6
|
| Date Published |
17.05.1924
|
| Type of Work |
Patent certificate
|
| Place Published |
Berlin
|
Copyright information
Original from
Deutsches Historisches Museum, Berlin (Inventory number: Do2 98/2200)
Copyright holder
Name
Richard Doegen
Copyright attribution
In copyright
Digitization Copyright
© Deutsches Historisches Museum, Berlin