For the Inventor, By the Inventor

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Hausermann Ltd.

USPTO Granted Patents = 1

EPO Patents = 4

Forward Citations = 20

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1 inventor (with patents filed for the assignee):

Douglas C Ball (1 out of 33 patents)

Rudolf Janesch (0 patent)

Erich Strummer (0 patent)

4. Johann Hackl (0 patent)

5. Lothar Oberender (0 patent)

1 patent: Sort by Forward Citations

1. D252781 - Secretarial arm chair (1979-09-04),

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USPTO Data Jan 1 1976 - Dec 30 2025

1 Patents

#741 in undefined, undefined

#889 in

#133,864 in US

Hausermann Ltd.

Forward Citations = 20

1 inventor:

Douglas C Ball (1 out of 33 patents)

Rudolf Janesch (0 patent)

Erich Strummer (0 patent)

4. Johann Hackl (0 patent)

5. Lothar Oberender (0 patent)

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