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Hans-Jurgen Hoereth
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Langenbach, DE
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Patents Grants
last 30 patents
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Patent Grant
Drilling device
Patent number
4,825,961
Issue date
May 2, 1989
Hilti Aktiengesellschaft
Anton Neumaier
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Lockable striking mechanism for hammer drill
Patent number
4,798,249
Issue date
Jan 17, 1989
Hilti Aktiengesellschaft
Hans-Jurgen Hoereth
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Hammer drill with separate and interconnectable drive means
Patent number
4,732,218
Issue date
Mar 22, 1988
Hilti Aktiengesellschaft
Anton Neumaier
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Drill bit chuck for drilling and cutting devices
Patent number
4,691,929
Issue date
Sep 8, 1987
Hilti Aktiengesellschaft
Anton Neumaier
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS