Items
Items
Relation is exactly
Hagen Batterie GmbH
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[E1121BN], Letter from Sigmund Bergmann to Thomas Alva Edison, October 16th, 1911
1911-10-16 -
[E1315CA], Letter from Sigmund Bergmann to Thomas Alva Edison, September 26th, 1913
1913-09-26 -
[E1315CK1], Letter from Sigmund Bergmann to Thomas Alva Edison, November 12th, 1913
1913-11-12 -
[E1413BB], Letter from Deutsche Edison Akkumulatoren Co GmbH to Thomas Alva Edison, August 1914
1914-08-00