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Andrew P. Dretzka
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New Berlin, WI, US
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Patents Grants
last 30 patents
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Patent Grant
Drive mechanism for mining attachment
Patent number
9,783,958
Issue date
Oct 10, 2017
Harnischfeger Technologies, Inc.
Andrew P. Dretzka
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Conduit support structure for an industrial machine with saddle block
Patent number
9,382,685
Issue date
Jul 5, 2016
Harnischfeger Technologies, Inc.
Douglas Maki
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Patents Applications
last 30 patents
Information
Patent Application
CONDUIT SUPPORT STRUCTURE FOR AN INDUSTRIAL MACHINE
Publication number
20160281317
Publication date
Sep 29, 2016
Harnischfeger Technologies, Inc.
Douglas Maki
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
DRIVE MECHANISM FOR MINING ATTACHMENT
Publication number
20150020636
Publication date
Jan 22, 2015
Harnischfeger Technologies, Inc.
Andrew P. Dretzka
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
CONDUIT SUPPORT STRUCTURE FOR AN INDUSTRIAL MACHINE
Publication number
20140227071
Publication date
Aug 14, 2014
Douglas Maki
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING