Polygram International Holding B.V.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Polygram International Holding B.V..The latest application filed is for "two-stage injection-molding machine".

Company Profile

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Polygram International Holding B.V. - Baarn NL
Polygram International Holding B.V. - DN Baarn NL

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Two-stage injection-molding machine Grant 5,700,500 - Wilhelm December 23, 1	1997-12-23
Copying apparatus for copying a magnetic pattern from a master magnetic tape on a duplicate magnetic tape and method of operating such a copying apparatus Grant 4,882,637 - Duurland , et al. November 21, 1	1989-11-21
Cassette with tray ejection means Grant 4,805,770 - Grobecker , et al. February 21, 1	1989-02-21
Method of transmitting audio information and additional information in digital form Grant 4,750,173 - Bluthgen June 7, 1	1988-06-07
Disc-shaped information carrier and method of manufacturing it Grant 4,747,093 - Benne , et al. May 24, 1	1988-05-24
Method of replenishing and/or preparing treating liquids Grant 4,745,690 - Koop , et al. May 24, 1	1988-05-24
Disc-shaped information carrier and method of manufacturing it Grant 4,726,006 - Benne , et al. February 16, 1	1988-02-16
Disc receiving tray and a combination of such a tray with a storage cassette Grant 4,722,439 - Grobecker , et al. February 2, 1	1988-02-02

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