Assignee
WALTER AG ALFRED
5 granted patents·30 citations·filing 1977–1979
Top patents by PatentIndex Score
5 records- 0160US4179941AMethod of and apparatus for measuring the flexural stiffness of a sheet like sampleWALTER AG ALFRED·Filed 1978·Granted Dec 25, 1979·15 cites·10 claims
- 0244US4133203AApparatus for testing the burst strength of a line of perforationsWALTER AG ALFRED·Filed 1978·Granted Jan 9, 1979·7 cites·10 claims
- 0341US4231273AApparatus for perforating a paper sampleWALTER AG ALFRED·Filed 1978·Granted Nov 4, 1980·6 cites·2 claims
- 0430US4203320ATesting apparatus for multiple copy form setsWALTER AG ALFRED·Filed 1979·Granted May 20, 1980·1 cites·5 claims
- 0529US4122702AApparatus for testing a forms set for print through qualityWALTER AG ALFRED·Filed 1977·Granted Oct 31, 1978·1 cites·11 claims
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