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For the Inventor, By the Inventor

Horb am Neckar, Germany

Ledermann Gmbh Co.


USPTO Granted Patents = 7

Forward Citations = 89

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6 inventors (with patents filed for the assignee):

goldMedal Eberhard Heimbrand (3 out of 3 patents)

silverMedal Otto Katz (2 out of 3 patents)

bronzeMedal Julius Friesinger (1 out of 2 patents)

4.  Peter Bok (1 out of 1 patent)

5.  Josef Storzer (1 out of 1 patent)

6.  Erwin Mellert (1 out of 1 patent)


7 patents:

1. 4906147 - Clamping mechanism (1990-03-06),
2. 4652182 - Milling cutter having interchangeable cutter blades (1987-03-24),
3. 4407178 - Circular saw blades (1983-10-04),
4. 4257302 - Saw tool (1981-03-24),
5. 4225274 - Drilling tool (1980-09-30),
6. 3946777 - Edge machining tool construction (1976-03-30),
7. 3941173 - Apparatus for machining the edges of panels, especially panels of wood (1976-03-02),
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USPTO Data Jan 1 1976 - Sep 29 2026

7 Patents

#5 in Horb am Neckar

#4,855 in Germany

Horb am Neckar, DE
Horb am Neckar, Germany

Ledermann Gmbh Co.

Forward Citations = 89

6 inventors:

goldMedal Eberhard Heimbrand (3 out of 3 patents)

silverMedal Otto Katz (2 out of 3 patents)

bronzeMedal Julius Friesinger (1 out of 2 patents)

4.  Peter Bok (1 out of 1 patent)

5.  Josef Storzer (1 out of 1 patent)

Please report any incorrect information to [email protected]
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