公开(公告)号：CA1196991A

公开(公告)日：1985-11-19

申请号：CA421668

申请日：1983-02-15

Applicant: FLEX KEY CORP

Inventor： RODRIGUE LEO J

IPC: H01H13/48 ,  G06F3/02 ,  H01H13/702 ,  H03M11/00

Abstract: TACTILE MEMBRANE KEYBOARD WITH ASYMMETRICAL TACTILE KEY ELEMENTS A tactile or snap action membrane keyboard is presented wherein the tactile or snap action key elements are protrusions in a membrane sheet, the protrusions being asymmetrical to preprogram the collapse of the tactile element.

公开(公告)号：IT8319747D0

公开(公告)日：1983-02-24

申请号：IT1974783

申请日：1983-02-24

Applicant: FLEX KEY CORP

Inventor： RODRIGUE LEO J

IPC: H01H13/48 ,  G06F3/02 ,  H01H13/702 ,  H01H

公开(公告)号：IT1160724B

公开(公告)日：1987-03-11

申请号：IT1974783

申请日：1983-02-24

Applicant: FLEX KEY CORP

Inventor： RODRIGUE LEO J

IPC: H01H13/48 ,  G06F3/02 ,  H01H13/702 ,  H01H