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DIONIAN INDUSTRIES Ltd
DIONIAN IN
Active Patents
0
Total Holdings
2
Patent Holdings
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Patent No.
Title
Status
Filing Date
Grant Date
Claims
Actions
US3989431A
Pile extruder
Expired / Lapsed
1975-02-10
1976-11-02
23
Details
US3605217A
Pile extruder
Expired / Lapsed
1968-10-21
1971-09-20
0
Details