Assignee
PRODUCT ENGINEERING & MANUFACT
US·3 granted patents·191 citations·filing 1989–1997
Top patents by PatentIndex Score
3 records- 0189US5785439AEnvironmentally safe machine control security switchPRODUCT ENGINEERING & MANUFACT·Filed 1997·Granted Jul 28, 1998·123 cites·11 claims
- 0276US4910764AFacsimile and voice communications interface devicePRODUCT ENGINEERING & MANUFACT·Filed 1989·Granted Mar 20, 1990·30 cites·12 claims
- 0374US5086458ATelephone answering system and apparatus for direct caller selection of a party line extensionPRODUCT ENGINEERING & MANUFACT·Filed 1989·Granted Feb 4, 1992·38 cites·7 claims
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