Patent document no. 447 394 for the “Doegen-Lauthalter”
Details
Height x width: 27,5 x 18,4 cm
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From the series
Source information
Type | Patent
|
Author | |
Year of Publication |
1927
|
Number |
447 394, class 42 g, group 6
|
Date Published |
21.07.1927
|
Type of Work |
Patent
|
Publisher |
Reichspatentamt
|
Place Published |
Berlin Lichterfelde
|
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Noise
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Copyright information
Original from
Deutsches Historisches Museum, Berlin (Inventory number: Do2 98/2201)
Copyright holder
Name
Richard Doegen
Copyright attribution
In copyright
Digitization Copyright
© Deutsches Historisches Museum, Berlin