McMah; David
Patent Applications and Registrations
Patent applications and USPTO patent grants for McMah; David.The latest application filed is for "railroad crossing warning system".
- McMah; David - Brisbane N/A AU
| Patent | Date |
|---|---|
| Worker's personal alarm device Grant 8,952,805 - Baines , et al. February 10, 2 | 2015-02-10 |
| Railroad Crossing App 20130193275 - Baines; Stephen ; et al. | 2013-08-01 |
| Railroad Crossing Warning System App 20130194423 - Baines; Stephen ; et al. | 2013-08-01 |
| Worker's Personal Alarm Device App 20130162428 - Baines; Stephen ; et al. | 2013-06-27 |
| Worker Protection Method App 20130166114 - Baines; Stephen ; et al. | 2013-06-27 |
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