For the Inventor, By the Inventor

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Aachen, Germany

Schumag Schumacher Metallwerke Gmbh

USPTO Granted Patents = 2

Forward Citations = 5

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2 inventors (with patents filed for the assignee):

Johann Greven (2 out of 6 patents)

Walter Wetzels (1 out of 5 patents)

2 patents: Sort by Forward Citations

1. 4182150 - Carriage drawing machine for uniformly drawing and longitudinally (1980-01-08),

2. 3945284 - Parting tool for severing traveling elongated material into (1976-03-23),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#63 in Aachen

#10,495 in Germany

Aachen, Germany

Schumag Schumacher Metallwerke Gmbh

Forward Citations = 5

2 inventors:

Johann Greven (2 out of 6 patents)

Walter Wetzels (1 out of 5 patents)

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