TY  - BOOK
TI  - Elektrische Uhren: deutsche reichs Patente, 1877-1941
PY  - 1992///?]
CY  - [Germany]
PB  - [Thomas Schraven]
KW  - Clocks and watches, Electric
KW  - Germany
KW  - Patents
KW  - 1877-1941
KW  - electrical
KW  - electromechanical
KW  - patent
KW  - reischspatent
KW  - Patent
KW  - Timekeeper (general)
KW  - Reference
KW  - Government
KW  - lcgft
ER  -