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For the Inventor, By the Inventor

AC Dongen, Netherlands

Calumatic B. V.


USPTO Granted Patents = 1

Forward Citations = 21

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1 inventor (with patents filed for the assignee):

goldMedal Franciscus Antonius Damen (1 out of 6 patents)


1 patent:

1. 4848419 - Device for evacuating oxygen from a container (1989-07-18),
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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#1 in AC Dongen

#3,284 in Netherlands

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AC Dongen, Netherlands

Calumatic B. V.

Forward Citations = 21

1 inventor:

goldMedal Franciscus Antonius Damen (1 out of 6 patents)

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