| •••••••• | CTS VALPEY CORP | Functional Equivalent | Obsolete | |
| •••••••••• | ADVANCED CRYSTAL TECHNOLOGY | Functional Equivalent | Other | |
| •••••••••• | FREQUENCY MANAGEMENT INTERNATIONAL | Functional Equivalent | Other | |
| ••••••••• | FREQUENCY MANAGEMENT INTERNATIONAL | Functional Equivalent | Other | |
| ••••••••••• | CTS VALPEY CORP | Functional Equivalent | Obsolete | |
| ••••••••• | FREQUENCY MANAGEMENT INTERNATIONAL | Functional Equivalent | Other | |
| •••••••••• | ADVANCED CRYSTAL TECHNOLOGY | Functional Equivalent | Other | |
| •••••••••• | FREQUENCY MANAGEMENT INTERNATIONAL | Functional Equivalent | Other | |
| ••••••••• | ADVANCED CRYSTAL TECHNOLOGY | Functional Equivalent | Other | |
| ••••••• | ADVANCED CRYSTAL TECHNOLOGY | Functional Equivalent | Other | |
| •••••••••••• | ADVANCED CRYSTAL TECHNOLOGY | Functional Equivalent | Other | |
| •••••••••••• | CTS CORP | Functional Equivalent | Active | |
| •••••••••• | FREQUENCY MANAGEMENT INTERNATIONAL | Functional Equivalent | Other | |
| •••••••••••• | ADVANCED CRYSTAL TECHNOLOGY | Functional Equivalent | Other | |
| •••••••••••• | FREQUENCY MANAGEMENT INTERNATIONAL | Functional Equivalent | Other | |
| •••••••••• | ADVANCED CRYSTAL TECHNOLOGY | Functional Equivalent | Other | |
| •••••• | CTS CORP | Functional Equivalent | Active | |
| ••••••• | FREQUENCY MANAGEMENT INTERNATIONAL | Functional Equivalent | Other | |
| ••••••••••• | FREQUENCY MANAGEMENT INTERNATIONAL | Functional Equivalent | Other | |
| •••••• | CTS CORP | Functional Equivalent | Active | |
