Berg. Gladbach, DE
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Patent Grant
Helmut Federmann
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Patent Grant
Felten & Guilleaume Energietechnik AG
Friedrich K. Levacher
G01 - MEASURING TESTING
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Patent Grant
Felten & Guilleaume Energietechnik Aktiengesellschaft
Helmut Federmann
G01 - MEASURING TESTING
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Patent Grant
Felten & Guilleaume Energietechnik Aktiengesellschaft
Helmut Federmann
G01 - MEASURING TESTING
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Patent Grant
Felten & Guilleaume Energietechnik GmbH
Helmut Federmann
G02 - OPTICS
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Patent Grant
Philips Kommunikations Industrie A
J. Peter Starke
G01 - MEASURING TESTING
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Patent Grant
Felten & Guilleaume Energietechnik GmbH
Friedrich K. Levacher
G08 - SIGNALLING
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Patent Grant
Felten & Guilleaume Energietechnik GmbH
Helmut Federmann
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Felten & Guilleaume Carlswerk Aktiengesellschaft
Helmut Federmann
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Patent Grant
Felten & Guilleaume Carlswerk AG
Helmut Federmann
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
