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For the Inventor, By the Inventor

Soderfors, Sweden

Kloster Speedsteel Aktiebolag


USPTO Granted Patents = 3

Trademarks = 1

Forward Citations = 44

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2 inventors (with patents filed for the assignee):

goldMedal Leif Westin (2 out of 6 patents)

silverMedal Per Billgren (1 out of 3 patents)


3 patents:

1. 4748088 - Tool die blank and manufacturing method thereof (1988-05-31),
2. 4585619 - Method of producing high speed steel products metallurgically (1986-04-29),
3. 4569823 - Powder metallurgical method (1986-02-11),
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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#2 in Soderfors

#1,562 in Sweden

...
Soderfors, Sweden

Kloster Speedsteel Aktiebolag

Forward Citations = 44

2 inventors:

goldMedal Leif Westin (2 out of 6 patents)

silverMedal Per Billgren (1 out of 3 patents)

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